This project is a reference design for a 2A Solar Panel Power Manager With 7.2V LiFePO4 Battery and 17V Peak Power Tracking based on LT3652 IC. It includes components like resistors, capacitors, LEDs, and a JST connector for power input and battery connection. The design caters to high input voltage applications and ensures efficient charging with minimal components. #Module #LT3652 #ReferenceDesign #charger #BatteryManagement #solar #reusable #module #bms #analog #LiFePO4 #sublayout

This is a BLE to WiFi gateway module. It employs an ESP32 microcontroller and an STM32WB5MMGH6TR for BLE functionality. The design includes connectors, multiple capacitors, resistors, switches, and LEDs. USB Type-C is used for power and data. This could be used for IoT purposes in home automation or wireless sensor data transmission. #reusable #module #edge-computing #espressif #stm #ble #sublayout

This is a light-sensitive LED reference design featuring an STM32L031F4P6 microcontroller. It interfaces with a TEMT6000X01 light sensor and controls a multi-colored LED. The system also has a user button and UART for communication, and regulators to manage power supply. #referenceDesign #reusable #module #simple-embedded #light-sensitive #module #sublayout

This LED driver board is a compact yet powerful solution supporting both 5V and 12V LED strips, including popular addressable RGB LEDs such as NeoPixel WS2812, WS2813, WS2815. Compatible with all XIAO boards, it enables smart control and automation through WLED and Home Assistant when using XIAO ESP32 Series, while offering flexible power options and comprehensive protection for safe, reliable operation in your lighting setup.

Red, Green, Blue (RGB) 624nm Red, 525nm Green, 470nm Blue LED Indication - Discrete 2V Red, 3.3V Green, 3.3V Blue 4-SMD, No Lead # 150080M153000 ## General Description The 150080M153000 is a compact surface-mount full-color RGB LED manufactured by Würth Elektronik as part of the WL-SFCD series. The device integrates red, green, and blue light-emitting elements within a single package, enabling the generation of a wide spectrum of colors for status indication, user interfaces, backlighting, visual notifications, and decorative lighting applications. Its diffused lens design provides uniform light distribution and wide viewing visibility, making it suitable for industrial equipment, consumer electronics, communication devices, instrumentation systems, control panels, and embedded electronic products. The component is optimized for automated assembly processes and offers reliable optical performance, low power consumption, and long operational life. ## Key Features ### Optical Characteristics * Full-color RGB light output * Integrated red, green, and blue emitters * Diffused lens design for uniform illumination * Wide viewing angle * High-visibility indication capability * Consistent color performance ### Electrical Characteristics * Low-power operation * Stable optical output * Suitable for indicator and backlighting applications * Reliable performance across operating conditions * Optimized for embedded electronic systems ### Mechanical Characteristics * Surface-mount package construction * Compact footprint * Low-profile package design * Compatible with automated assembly processes * Reflow-soldering compatible ### Package Construction * Common-anode configuration * Integrated multi-die LED architecture * Rectangular lens geometry * Lead-free package design * Industrial-grade construction ### Material Characteristics * High-quality encapsulation materials * Diffused optical lens * RoHS-compliant construction * Environmentally compliant materials ### Environmental Characteristics * Suitable for commercial and industrial applications * Long operational service life * Reliable operation under standard environmental conditions * Resistant to normal assembly and handling processes ### Application Areas * Status Indicators * User Interface Displays * Industrial Control Panels * Consumer Electronics * Home Appliances * Telecommunications Equipment * Instrumentation Systems * Backlighting Applications * Smart Devices * Embedded Electronic Products * Safety and Security Equipment * Human-Machine Interface Systems ### Compliance * RoHS Compliant * REACH Compliant * Lead-Free Compatible * Industry-Standard Surface-Mount Technology ## Manufacturer Würth Elektronik ## Product Family WL-SFCD SMD Full-Color Chip LED Series #150080M153000 #WurthElektronik #RGBLED #SMDLED #WLSFCD #FullColorLED #LEDIndicator #Backlighting #Optoelectronics #EmbeddedSystems #IndustrialElectronics #ConsumerElectronics #PCBDesign #ElectronicsEngineering #SMTAssembly #commonpartslibrary #optoelectronic #ledindication

Red 631nm LED Indication - Discrete 2V 0603 (1608 Metric) The LTST-C190KRKT is a surface-mount red LED designed for compact electronic applications requiring reliable visual indication. It is housed in a standard chip LED package, making it suitable for automated assembly processes. This device offers high luminous intensity with low power consumption, ideal for status indicators, backlighting, and display applications. Key Features High brightness red LED Compact surface-mount package (0603 / 1608 metric) Low forward voltage and low power consumption Wide viewing angle for uniform illumination Compatible with automated placement equipment RoHS compliant and lead-free Electrical Characteristics (Typical @ 25°C) Forward Voltage (Vf): 2.0 V (typ), 2.4 V (max) Forward Current (If): 20 mA (recommended) Luminous Intensity: ~100–180 mcd Wavelength (Peak): ~631 nm (red) Optical Characteristics Color: Red Viewing Angle: 120° (typ) Absolute Maximum Ratings Forward Current: 30 mA (continuous) Peak Forward Current: 100 mA (pulse) Power Dissipation: ~75 mW Operating Temperature Range: -40°C to +85°C Storage Temperature Range: -40°C to +100°C Mechanical Characteristics Package Type: SMD Chip LED Package Size: 0603 (1.6 mm × 0.8 mm) Mounting Type: Surface Mount Lens Type: Clear Applications Status indicators in electronic devices Backlighting for displays and keypads Consumer electronics Industrial control panels Portable and battery-powered devices #commonpartslibrary #optoelectronic #led #red

Bipolar (BJT) Transistor NPN 40V 200 mA 300MHz 300 mW Surface Mount SOT-23-3 (TO-236) The MMBT3904LT1G is a general-purpose NPN bipolar junction transistor designed for switching and amplification applications. It is housed in a compact SOT-23 surface-mount package, making it suitable for high-density PCB designs. This transistor is widely used in low-power signal processing, digital switching, and analog amplification circuits due to its reliable performance and fast switching characteristics. Key Features General-purpose NPN transistor Compact SOT-23 surface-mount package Fast switching speed Low saturation voltage Suitable for low-current and low-power applications High reliability and stability Pb-free, Halogen-free, and RoHS compliant Electrical Characteristics (Typical @ 25°C unless otherwise specified) Collector-Emitter Voltage (VCEO): 40 V Collector-Base Voltage (VCBO): 60 V Emitter-Base Voltage (VEBO): 6 V Collector Current (IC): 200 mA (max) DC Current Gain (hFE): 100 – 300 Collector-Emitter Saturation Voltage (VCE(sat)): 0.2 V (typ) Transition Frequency (fT): ~300 MHz Absolute Maximum Ratings Collector Current (Continuous): 200 mA Power Dissipation: ~225 mW Junction Temperature: +150°C (max) Operating Temperature Range: -55°C to +150°C Storage Temperature Range: -55°C to +150°C Mechanical Characteristics Package Type: SOT-23 (TO-236AB) Mounting Type: Surface Mount Number of Pins: 3 Marking Code: Dependent on lot/manufacturer marking Applications General-purpose switching circuits Signal amplification Digital logic interfacing LED drivers and small load switching Audio and RF signal processing #CommonPartsLibrary #TransistorBJT #MMBT2222

CMOS BCD-to-7-Segment LED Latch Decoder Drivers 16-TSSOP -55 to 125 The CD4511BPWR is a CMOS BCD-to-7-segment latch decoder/driver IC from Texas Instruments designed to directly drive common-cathode 7-segment LED displays. It converts a 4-bit BCD (Binary-Coded Decimal) input into the appropriate 7-segment output signals for displaying decimal digits 0–9. The device integrates latch, decode, and display driver functions in a single package, making it suitable for digital clocks, counters, panel meters, calculators, and embedded display systems. Key Features CMOS BCD-to-7-segment latch decoder/driver Directly drives common-cathode LED displays High output source current capability up to 25 mA Built-in input latch for BCD data storage Lamp Test (LT) function for display testing Blanking Input (BI) for display blanking/intensity control Automatically blanks invalid BCD inputs (>1001) Wide operating supply voltage range: 3 V to 18 V Low static power consumption with high noise immunity Compatible with CMOS, NMOS, and TTL logic levels Available in TSSOP-16 package (BPWR variant) #commonpartslibrary #integratedcircuit #leddriver

Green LED Indication - Discrete 2.2V 0603 (1608 Metric) The SML-LX0603GW-TR is a surface-mount white LED in a compact 0603 (1608 metric) package, designed for indicator and backlighting applications. It offers high brightness with low power consumption and wide viewing angle, making it suitable for portable and space-constrained electronic devices. The device is optimized for automated assembly and is supplied in tape-and-reel packaging. Key Features White LED (cool white emission) Compact 0603 (1.6 mm × 0.8 mm) SMD package High luminous intensity with low forward current Wide viewing angle (~120° typical) Low power consumption Compatible with reflow soldering Tape & reel packaging for automated assembly Optical Characteristics (Typical values) Emission Color: White Luminous Intensity: ~100 to 300 mcd @ 20 mA Color Temperature: ~6000K to 8000K Viewing Angle: 120° Electrical Characteristics (Typical values unless otherwise specified) Forward Voltage (VF): Typ: 3.0 V Max: 3.4 V @ 20 mA Forward Current (IF): 20 mA (continuous) Reverse Voltage (VR): 5 V Power Dissipation: ~75 mW Absolute Maximum Ratings Forward Current: 25 mA (continuous) Peak Forward Current: 100 mA (pulse, short duration) Operating Temperature: -40°C to +85°C Storage Temperature: -40°C to +100°C Mechanical Characteristics Package Type: 0603 (1608 metric) Dimensions: ~1.6 mm × 0.8 mm × 0.8 mm Mounting Type: Surface mount (SMT) Polarity: Cathode marking on package Material Specifications Lens: Epoxy resin (diffused) LED Chip: InGaN (Indium Gallium Nitride) Lead Frame: Copper alloy with silver plating Packaging Information Packaging Type: Tape & Reel (TR) Reel Quantity: Typically 3,000–5,000 pcs per reel RoHS Compliant: Yes Lead-Free: Yes Typical Applications Status indicators Backlighting (LCD, keypad, buttons) Consumer electronics Portable devices Automotive interior lighting (low-power) #commonpartslibrary #optoelectronic #led #SML-LX0603

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-C3-WROOM-02-N4 is a compact, general-purpose Wi-Fi and Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-C3 SoC and integrates RF components, crystal oscillator, flash memory, and PCB antenna in a single module. It is designed for a wide range of applications such as IoT devices, smart home systems, industrial automation, and consumer electronics, offering a balance of performance, low power consumption, and cost efficiency. Key Features MCU & Memory 32-bit RISC-V single-core processor up to 160 MHz 384 KB ROM 400 KB SRAM + 8 KB RTC SRAM Integrated 4 MB SPI flash (N4 variant) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Supports Station, SoftAP, and Station + SoftAP modes Bluetooth 5 (BLE) with mesh support Data rates up to 150 Mbps (Wi-Fi) Peripherals & Interfaces Up to 15 GPIOs Interfaces: SPI, UART, I2C, I2S LED PWM ADC (SAR) Timers & watchdog USB Serial/JTAG support TWAI® (CAN 2.0 compatible) #commonpartslibrary #transceiver #module #wireless #rf

Enclosed AC DC Converters 1 Uitgang 12V - - - 1.8A 85 ~ 264 VAC, 120 ~ 370 VDC Input The IRM-20-12 is a compact enclosed AC-DC power supply module from MEAN WELL’s IRM-20 series. It is designed to convert a wide-range AC input into a stable 12V DC output, delivering reliable power for embedded systems, industrial electronics, and general-purpose PCB-mounted applications. It is a board-mount (through-hole) module with an encapsulated design, making it suitable for space-constrained and high-reliability environments. Key Features AC-DC Converter Module Converts AC mains to regulated 12V DC output Power Rating Up to 20–22W output power Output Capability 12V DC / 1.8A max current Universal Input Range 85–264 VAC (wide input compatibility) High Efficiency Around ~84% typical efficiency Compact Enclosed Design Fully encapsulated plastic case for protection and durability Through-Hole PCB Mount Designed for direct soldering onto PCB boards Low No-Load Power Consumption <0.1W standby consumption Built-in Protection Functions Overload protection Short circuit protection Overvoltage protection Wide Operating Temperature Typically -30°C to +70°C Safety Certifications UL, CE, TUV, CB approved (varies by region) EMI Compliance Designed to meet Class B EMI standards (with internal filtering) Typical Applications Industrial automation systems Factory equipment Embedded electronics IoT devices LED lighting systems Small control boards and instrumentation #CommonPartsLibrary #powersupply #ACDCconverter

Bipolar (BJT) Transistor NPN 40V 200mA 300MHz 350mW Surface Mount SOT-23 The MMBT3904-TP is an NPN general-purpose bipolar junction transistor (BJT) in a SOT-23 surface-mount package. It is a compact SMD version of the classic 2N3904, designed for switching and low-power signal amplification in a wide range of electronic circuits. It is commonly used in embedded systems, consumer electronics, and PCB designs where small size and reliable switching performance are required. Key Features NPN Bipolar Junction Transistor (BJT) Suitable for switching and amplification applications SOT-23 Surface-Mount Package Compact footprint for high-density PCB designs Collector-Emitter Voltage (Vceo) Typically up to 40V Collector Current Up to 200 mA continuous Low Power Operation Designed for small signal and low-power switching tasks High Gain (hFE) DC current gain typically 100–300 Fast Switching Capability Suitable for digital and pulse applications Wide Operating Temperature Range Typically -55°C to +150°C High Reliability Stable performance for general-purpose use RoHS Compliant Environmentally compliant manufacturing Typical Applications Signal switching in digital circuits LED driving circuits Small relay or load switching Sensor interface circuits General-purpose amplification stages 2N3904 SOT-23 #CommonPartsLibrary #Transistor #BJT #NPN #MMBT3904

Bipolar (BJT) Transistor NPN 40V 600 mA 300MHz 300 mW Surface Mount SOT-23-3 (TO-236) The MMBT2222ALT3G is a NPN general-purpose bipolar junction transistor (BJT) manufactured by onsemi, designed in a SOT-23 surface-mount package. It is the SMD version of the well-known 2N2222A transistor family, used for switching and signal amplification in compact electronic circuits. It is widely used in industrial, automotive (AEC-Q101 qualified variants), and general embedded systems due to its reliability, small size, and good electrical performance. Key Features NPN General-Purpose Transistor Suitable for switching and low-power amplification Collector-Emitter Voltage (Vceo) Up to 40 V Collector Current Up to 600 mA Power Dissipation Around 225–300 mW (depending on package conditions) High Frequency Performance Transition frequency up to ~300 MHz DC Current Gain (hFE) Typically ~100 at moderate currents Low Saturation Voltage Efficient switching performance for digital circuits SOT-23 Surface-Mount Package Compact footprint for modern PCB designs Wide Temperature Range Typically -55°C to +150°C RoHS / Lead-Free Compliant Environmentally compliant manufacturing Typical Applications LED switching circuits Relay driver stages MCU signal interfacing (Arduino, ESP32, etc.) Small motor drivers General signal amplification Automotive and industrial control circuits Important Note MMBT2222ALT3G = SMD version (SOT-23) Equivalent to 2N2222A (TO-92 through-hole version) in function, but not in physical package. 2N2222A SOT-23 #commonpartslibrary #transistor #bjt

The BP2866C, manufactured by 晶丰明源半导体, is a high precision buck constant current LED driver designed for universal input offline LED lighting applications. Operating in critical conduction mode, this component is suitable for 85Vac~265Vac input and integrates a 500V power MOSFET. It features patented demagnetization detection technology and high-voltage JFET power supply technology, eliminating the need for a VCC capacitor and starting resistors, thereby minimizing system cost and size. The BP2866C offers precise output current and excellent line regulation through a patent-pending current control method. It includes robust protection functions such as LED short circuit protection, VCC under voltage protection, and thermal regulation. Available in a SOP7 package, it ensures a +5% LED output current accuracy and is ideal for applications like LED candle lights and bulbs.

LED Lighting WL-SWTP White, Warm 2700K 3V 20mA 120° 1206 (3216 Metric) The 158301227 is a surface-mount white LED manufactured by Würth Elektronik, belonging to the WL-SWTP series of top-view PLCC-packaged light-emitting diodes designed for general illumination, backlighting, and signal indication applications in compact electronics. It is built on a gallium nitride semiconductor chip, the standard chip technology used in high-efficiency white LED production, which achieves white light emission by combining a blue GaN die with a phosphor conversion layer that down-converts a portion of the blue photons into broader-spectrum yellow light, with the combined blue and yellow output perceived by the human eye as white light. This particular variant is characterized by a warm white Sunrise color temperature, placing it in the lowest color temperature tier of the WL-SWTP family. Warm white light at this color temperature produces a yellowish, incandescent-like appearance that is widely preferred in residential, hospitality, and ambient lighting applications where a soft, comfortable visual environment is desired. This makes the device a natural fit for LED-based replacements for incandescent and halogen light sources in T5 and T8 fluorescent tube form factor products, as well as indoor display backlights, decorative architectural lighting, and other applications where a warm light quality is specified or preferred by end users. The WL-SWTP series features fast switching, no infrared radiation, high color rendering index, slim and miniature size, low power consumption, suitability for all SMT assembly methods, a top-view emission direction, and a wide viewing angle. The high color rendering index characteristic of this device means that objects illuminated by it appear with colors close to how they would look under natural daylight illumination, which is an important quality metric in retail, museum, medical examination, and other environments where accurate color representation enhances user experience or functional accuracy. Texas Instruments The PLCC package style used in this device is a molded plastic leaded chip carrier format that provides a well-defined, mechanically stable footprint for surface-mount assembly, with the optical emitting surface oriented perpendicular to the PCB plane in the top-view configuration. This top-view orientation makes the device suitable for direct illumination of surfaces positioned above the PCB, such as diffusers, light guides, or display panels mounted parallel to the LED board. The compact 3014 package footprint allows high-density LED arrays to be assembled on narrow PCB strips or modules, which is typical in LED tube light and edge-lit backlight designs. The device is supplied on tape-and-reel packaging suitable for automated high-speed pick-and-place assembly at production volumes. Spec Sheet Identification Part Number: 158301227 Series: WL-SWTP — SMD White Top View PLCC LED Manufacturer: Würth Elektronik GmbH & Co. KG Functional Classification Device Type: Surface-mount white LED Chip Technology: Gallium Nitride (GaN) with phosphor conversion Emission Type: White light via blue die plus phosphor down-conversion View Direction: Top view — perpendicular to PCB surface Optical Characteristics Emitting Color: Sunrise warm white Color Temperature: Warm white class, lowest CCT tier in WL-SWTP family Color Rendering Index: High CRI class, suitable for color-critical applications Viewing Angle: Wide angle, broad spatial distribution Infrared Radiation: None — no IR emission Electrical Characteristics Operating Current: Standard signal LED drive current class Forward Voltage: Standard GaN white LED forward voltage class Switching Speed: Fast switching capable Thermal Characteristics Thermal Resistance, Junction to Solder Point: Defined per series specification Maximum LED Junction Temperature: Rated to elevated junction temperature class Package & Mechanical Package Type: PLCC (Plastic Leaded Chip Carrier), PLCC-2 style Package Size: 3014 SMD footprint Mounting Method: Surface mount technology (SMT) Assembly Compatibility: Suitable for all standard SMT assembly methods including reflow soldering Target Applications Signal indication and pilot lights Indoor display backlighting General illumination and commercial lighting Replacement for PLCC 3528 devices in T8 and T5 LED tube designs Architectural and ambient lighting systems Environmental & Qualification RoHS Compliance: Yes REACH Compliance: Yes Packaging Supply Format: Tape-and-reel Standard Reel Quantity: Standard volume reel per Würth packaging convention #WuerthElektronik #WuerthElectronic #WLSWTP #WhiteLED #WarmWhiteLED #SunriseLED #PLCCLED #SMDLed #3014LED #TopViewLED #GaNLED #HighCRI #LEDBacklight #GeneralIllumination #IndoorLighting #SignalLED #LightingDesign #OptoelectronicComponent #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant #REACHCompliant

IXYS Integrated Circuits brings OptoMOS® technology, reliability and compact size to a new family of high-power Solid State Relays. As part of this family, the CPC1709J single-pole normally open (1-Form-A) DC Solid State Power Relay employs optically coupled MOSFET technology to provide 2500Vrms of input to output isolation. The output, constructed with an efficient MOSFET switch and photovoltaic die, uses IXYS Integrated Circuits’ patented OptoMOS architecture while the input, a highly efficient infrared LED, provides the optically coupled control. The combination of low on-resistance and high load current handling capability makes this relay suitable for a variety of high performance DC switching applications. The unique ISOPLUS-264 package pioneered by IXYS enables Solid State Relays to achieve the highest load current and power ratings. This package features a unique IXYS process where the silicon chips are soft soldered onto the Direct Copper Bond (DCB) substrate instead of the traditional copper leadframe. The DCB ceramic, the same substrate used in high power modules, not only provides 2500Vrms isolation but also very low junction-to-case thermal impedance (0.3 °C/W). Features • 22.8ADC Load Current with 5°C/W Heat Sink • Low 0.05 On-Resistance • 60VP Blocking Voltage • 2500Vrms Input/Output Isolation • Low Thermal Impedance: JC = 0.3 °C/W • Isolated, Low Thermal Impedance Ceramic Pad for Heat Sink Applications • Low Drive Power Requirements • No EMI/RFI Generation Applications • Industrial Controls / Motor Control • Robotics • Medical Equipment—Patient/Equipment Isolation • Instrumentation • Multiplexers • Data Acquisition • Electronic Switching • I/O Subsystems • Meters (Watt-Hour, Water, Gas) • Transportation Equipment #CPC1709J #IXYS #Littelfuse #SolidStateRelay #SSR #OptoMOS #PowerRelay #DCRelay #MOSFETRelay #HighCurrentSwitching #ElectricalIsolation #IndustrialElectronics #PowerManagement #BatterySystems #AutomationControl

This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #reusable #module #simple-embedded #microchip #sublayout

Ethernet Controller 10/100 Base-T/TX Bus Interface 80-TQFP-EP (12x12) The LAN9254-I/JRX is an EtherCAT SubDevice (slave) controller developed by Microchip Technology, designed to serve as the communication backbone for industrial automation devices participating in an EtherCAT network. The device integrates dual Ethernet physical layer transceivers directly on-chip, eliminating the need for external PHY components and simplifying the design of EtherCAT-enabled equipment such as servo drives, sensors, I/O modules, and other field devices used in real-time industrial control systems. Architecturally, the controller can operate as either a two-port or three-port node, depending on the network topology required. In its standard configuration it functions as a two-port device supporting daisy-chain connections typical of EtherCAT line topologies. When configured as a three-port device, it gains an additional management interface port that can connect to an external PHY or to another LAN9254, enabling star or tree network topologies and allowing the device to act as a branching point within a larger EtherCAT installation. Each integrated Ethernet PHY operates in full-duplex mode and supports automatic crossover detection, so the device can use either straight-through or crossover cabling without requiring manual configuration. Beyond pure protocol handling, the LAN9254 includes a substantial set of general-purpose digital input and output lines, allowing it to be used in simple field devices without requiring a separate microcontroller. For more complex applications, the device communicates with an external host processor through an integrated host bus interface that behaves like simple memory-mapped SRAM, supporting both 8-bit and 16-bit data widths along with multiple byte-ordering conventions, which makes it straightforward to interface with a wide range of microcontroller and microprocessor architectures. Internally, dual process data RAM buffers manage the exchange of real-time process data between the host application and the EtherCAT communication engine, while a dedicated interrupt line notifies the host of relevant internal events. A key feature of the device is its built-in distributed clock mechanism, which provides high-precision timing synchronization across all nodes in an EtherCAT network. This capability is essential for motion control and other applications where multiple devices must act in tight temporal coordination. The controller also provides configurable status indication through standard network activity and link LEDs, along with optional error and run-state indicators that give visibility into the health and operational state of the device at a glance. Power architecture on the LAN9254 is simplified through an integrated linear regulator, allowing the device to be operated from a single primary supply rail while internally generating the lower voltage needed for its core logic. This reduces the external power supply complexity that would otherwise be required to support separate core and I/O voltage domains. The "-I" designation on this particular part number indicates an industrial-grade temperature rating, making it suitable for deployment in factory floor and other demanding industrial environments where extended thermal range and long-term reliability are required. The device is housed in a surface-mount package consistent with dense industrial control board layouts and is compliant with RoHS material restrictions. Spec Sheet Identification Part Number: LAN9254-I/JRX Device Family: LAN9254 Manufacturer: Microchip Technology Functional Classification Device Type: EtherCAT SubDevice (slave) controller Network Role: Two/three-port configurable node Integrated PHYs: Dual Ethernet physical layer transceivers, on-chip Auto-MDIX Support: Yes, supports direct and crossover cabling Communication & Protocol Features Protocol: EtherCAT Topology Support: Daisy-chain (line), star, and tree topologies Additional Port Mode: Optional third port for branching/tap configurations Clock Synchronization: Integrated distributed clock for high-precision timing Host Interface Interface Type: SRAM-like host bus interface Data Width Support: Selectable bit-width host bus operation Endianness Support: Multiple byte-ordering modes Process Data Handling: Dual process data RAM buffers Interrupt Support: Configurable host interrupt line Digital I/O General-Purpose I/O: Integrated digital I/O lines for microcontroller-less operation Standalone Mode: Supports operation without external microcontroller for simple device designs Power Architecture Supply Configuration: Single primary supply rail Internal Regulation: Integrated linear regulator for core voltage generation Status Indication LED Support: Standard run and link/activity indicators per port Optional Indicators: Configurable error and run-state status indicators Environmental & Qualification Temperature Grade: Industrial ("-I" suffix) RoHS Compliance: Yes Package Package Type: Surface-mount, quad flat package style Mounting: Surface mount technology (SMT) Packaging Format Supply Format: Tape-and-reel, per part suffix designation #LAN9254 #Microchip #EtherCAT #SlaveController #SubDeviceController #IndustrialEthernet #IndustrialAutomation #MotionControl #EmbeddedSystems #FieldDevice #DigitalIO #HostBusInterface #DistributedClock #TQFP #RoHSCompliant #IndustrialGrade #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #SemiconductorIC

Battery Power Management IC Lithium Ion/Polymer 24-QFN (4x4) nPM1100 is an integrated Power Management IC (PMIC) with a linear-mode lithium-ion/lithium-polymer battery charger in a compact 2.1x2.1 mm WLCSP package. It has a highly efficient, dual-mode configurable output DC/DC buck regulator. nPM1100 is an extremely compact PMIC device, created for space constrained applications with a small lithium-ion or lithium-polymer battery. It is compatible with all nRF52 and nRF53 Series SoCs and supports charging batteries at up to 500 mA through USB, and also delivers up to 150 mA of current to power external components with regulated voltage. A minimum of five passive components are required for operation and the device functions without a control interface. It is the perfect companion for nRF52 and nRF53 multiprotocol SoCs in battery powered designs. Low quiescent current (IQ) extends battery life during shipping and storage with Ship mode, or in operation using auto-controlled hysteretic buck mode for high efficiency down to 1 µA loads. Charge and error indication LED drivers are built in. Charge profile limits are configurable and VBUS current limits can be fixed or auto-controlled with on-chip USB port detection. • 400 mA linear battery charger • Linear charger for lithium-ion/lithium-polymer batteries • Adjustable charge current from 20 mA to 400 mA • Selectable termination voltage of 4.1 V or 4.2 V • Automatic trickle, constant current, and constant voltage charging • Battery thermal protection • Discharge current limitation • JEITA compliant • Li-ion/Li-polymer USB battery charger with a high efficiency buck regulator • 800 nA - Typical quiescent current • 460 nA - Shipping mode quiescent current • Thermal protection • Input regulator • USB compatible current limit of 100 mA and 500 mA • 4.1 V to 6.7 V input voltage range for normal operation • 20 V overvoltage protection • Reverse current protection • 3.0 V to 5.5 V system voltage output • USB port detection supporting the following types: • SDP • CDP/DCP • 1.8 V to 3.0 V, 150 mA step-down buck regulator • Step-down buck regulator with up to 92% efficiency • Automatic transition between hysteretic and pulse width modulation (PWM) modes • Forced PWM mode for clean power operation • Pin-selectable output voltage (1.8 V, 2.1 V, 2.7 V, 3.0 V) • Soft start-up • LED drivers for charger state indication • 5 mA low side LED driver for charging indication • 5 mA low side LED driver for error indication • 2.3 V to 4.35 V battery operating input range • 2.1x2.1 mm WLCSP package • Suitable for two layer PCB design #CommonPartsLibrary #IntegratedCircuit #NordicSemiconductor #nPM1100 #PMIC #BatteryCharger #PowerManagement #LiIon #LiPolymer #BuckConverter #Wearables #IoT #WirelessSensor #LowPowerDesign #USBCharging #EmbeddedSystems #nRF52 #nRF53 #PortableElectronics

LED Lighting Driver ICs LED Lighting Drivers 4-Channel RGBW Driver, I2C, 1.5x1.5mm TDFN The KTD2027BEWE-TR is a highly integrated, low-power RGB LED driver designed for portable and battery-powered applications. It features a compact WLCSP package and provides precise current control for up to three LED channels. The device includes an I²C-compatible interface, enabling flexible control of brightness, color mixing, and lighting effects. Integrated features such as programmable current sinks, dimming control, and built-in protection mechanisms make it suitable for indicators, backlighting, and decorative lighting in consumer electronics. Key Features Triple-channel constant current LED driver (RGB support) I²C-compatible digital interface Independent brightness control per channel Programmable current up to ~24 mA per channel Built-in PWM dimming and pattern generation Low quiescent current for power-sensitive applications Wide input voltage range Thermal shutdown and overcurrent protection Small WLCSP package (suitable for compact designs) Applications Mobile devices and wearables Status indicators and notification LEDs Backlighting and decorative lighting IoT and portable electronics Absolute Maximum Ratings Supply Voltage (VDD): −0.3 V to +6.0 V Logic Input Voltage: −0.3 V to VDD + 0.3 V Operating Temperature Range: −40°C to +85°C Storage Temperature Range: −55°C to +150°C Recommended Operating Conditions Supply Voltage (VDD): 1.8 V to 5.5 V LED Forward Voltage: Dependent on external LEDs Ambient Temperature: −40°C to +85°C Electrical Characteristics (Typical) Supply Current (Idle): < 1 µA (shutdown mode) Channel Current Accuracy: ±5% (typical) Maximum Output Current: ~24 mA per channel I²C Clock Frequency: Up to 400 kHz (Fast Mode) Functional Description The KTD2027BEWE-TR operates as a constant-current sink driver for RGB LEDs. Each channel can be independently programmed via the I²C interface to control brightness and enable dynamic lighting effects. Internal PWM generators allow smooth dimming without requiring continuous microcontroller intervention. The device also integrates protection features such as thermal shutdown and current limiting to ensure reliable operation. Pin Configuration (Typical WLCSP) VDD – Power supply GND – Ground SDA – I²C data line SCL – I²C clock line LED1 – Current sink output (Red) LED2 – Current sink output (Green) LED3 – Current sink output (Blue) Package Information Package Type: WLCSP (Wafer-Level Chip Scale Package) Mounting: Surface mount Tape & Reel: Yes (TR suffix) Ordering Information KTD2027BEWE-TR: Tape and reel packaging for automated assembly #commonpartslibrary #integratedcircuit #leddriver

This project is a of ESP32-S3-MINI-1U. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes user RGB LED #referenceDesign #Module #ESP32 #ESP32S2 #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #sublayout

This is a LoRa based gas leakage detector design featuring a BME680 gas sensor by Bosch Sensortec. It includes a Seeed LoRa module for RF communication and uses an MCU. The power is driven by two non-rechargeable AA batteries with voltage regulation by TPS613221ADBVR IC. The project also incorporates user interaction components such as indicators (LED) and switches. #LoRa #MCU #ReferenceDesign #Module #reusable #module #simple-embedded #seeed #seeed-studio #sublayout

Low-Current Chip LED – Yellow-green surface-mount LED for status indication, portable electronics, industrial equipment, and wearable devices. Features a 569 nm dominant wavelength, 1.9 V typical forward voltage at 1 mA, and 2.1 mcd typical luminous intensity. Built using AlGaInP technology, it is optimized for low-current operation (1 mA typical) to minimize power consumption. Packaged in an ultra-small 0402 (1006 Metric, 1.0 × 0.6 × 0.2 mm) clear molded package for high-density PCB designs. Specified for operation over a −40°C to +85°C temperature range with a 54 mW maximum power dissipation. #ROHM #SMLP11MTT86R #PICOLED #ChipLED #YellowGreenLED #0402LED #SMDLED #IndicatorLED #LowCurrentLED #AlGaInP #Optoelectronics #EmbeddedSystems