Diodes - General Purpose VS-1EFH02HM3/I SMF_L3.5-W2.5-LS4.5-RD LCSC Part Number: C143738 JLCPCB Part Class: Extended Part Manufactured by VISHAY(威世)

Circuito I

Interface - I/O Expanders Remote 4-Bit I C and SMBus I/O expander with configuration registers I/O Expander 4 I2C 1 MHz 10-VSSOP

SRAM - Asynchronous Memory IC 256Kbit Parallel 45 ns 28-TSOP I #commonpartslibrary #integratedcircuit #memory

Battery Multi-Function Controller IC Lithium Ion/Polymer 32-VFQFPN (5x5) L9961 is part of a complete battery pack monitoring, balancing, and protecting system for Li-Ion and Li-Polymer cells in 3, 4 or 5 series configurations. The L9961 uses a high precision ADC to provide cell voltage, stack voltage and temperature conversion via external NTC. Voltage monitoring functions are cyclically performed with a programmable loop time. Stack current is also monitored via a high accuracy CSA, continuously running and performing also Coulomb counting. Cell balancing is available and can be simultaneously activated on all cells. IC configuration and information exchange for SOC/SOH estimation are performed via I2C peripheral. The IC also integrates a dual pre-driver programmable in both HS/LS configurations for driving pack relays. L9961 also implements battery pack fuse protection to prevent fire and explosion hazards. A 3.3 V regulator with a high current capability is available for supplying pack controller and other external circuitry in both standby and normal operation modes. The IC protects the battery pack against over/under voltage conditions and monitors for over/ under temperature. It also features protection against overcurrent (both directions) and short-circuit in discharge events. Safety-relevant configurations can be stored in the internal NVM to avoid re-programming the device at each wake-up. Features • 2 μA shipment - DEEP SLEEP mode current and 5 μA standby consumption (with VREG LDO active) standby consumption (with VREG LDO active) • Integrated 3.3 V VREG LDO for supplying MCU and LEDs • Measures cell voltage (3 to 5 cells), with over/undervoltage detection and balance undervoltage protection • 12-bit voltage measurement with maximum error of ±15 mV in the [1.5 – 4.5] V range, for -40 °C < TJ < 105 °C • Measures stack voltage, with over/under voltage detection and plausibility check vs. sum of cells • Measures pack temperature via NTC, with over/undertemperature detection • Ratiometric temperature measurement with ±0.8% max. gain error in the [0.2 – VREG] V range, for -40 °C < TJ < 105 °C • Measures battery current, with Coulomb counting, overcurrent (both directions) and short-circuit in discharge protection. • 16-bit signed current measurement with 0.1% full scale error at room temperature • I 2C peripheral for device programming and data transfers over I2C bus • Cell balancing supporting up to 70 mA per cell • Dual configurable HS/LS predriver for pack relay management • Pack fuse management • Embedded NVM for configuration parameters storage • High hotplug robustness Applications • Cordless power tools • Backup energy storage systems and UPS • Light electric vehicles (e-bikes, scooters, etc.) • Portable and semi-portable equipment • Medical equipment #L9961TR #BatteryManagement #BMS #LiIonBattery #LiPoBattery #STMicroelectronics #BatteryProtection #CellBalancing #CoulombCounting #PowerManagement #EmbeddedSystems #EnergyStorage #EBike #PowerTools #ElectronicsDesign

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

Charger IC Lithium Ion 49-WLP (3.46x3.46) The MAX77962 is a high-performance wide-input 3.2A buck-boost charger with a Smart Power Selector™ and operates as a reverse buck without an additional inductor, allowing the IC to power USB On-the-Go (OTG) accessories. The device integrates low-loss power switches, and provides small solution size, high efficiency, low heat, and fast battery charging. The reverse buck has true-load disconnect and is protected by an adjustable output current limit. The device is highly flexible and programmable through I2C configuration or autonomously through resistor configuration. The battery charger includes a Smart Power Selector to accommodate a wide range of battery sizes and system loads. The Smart Power Selector allows the system to start up gracefully when an input source is available even when the battery is deeply discharged (dead battery) or missing. For battery safety/authentication reasons, the IC can be configured to keep charging disabled, and allow the DC-DC to switch and regulate the SYS voltage. The system processor can later enable charging using the appropriate I2C commands. Alternatively, the IC can be configured to automatically start charging. ● 3.5V to 23V Input Operating Range, 30VDC Withstand Voltage ● 97% Peak Efficiency at 9VIN/7.4VOUT/1.5AOUT ● Reverse Leakage Protection ● 50mA to 3.15A Programmable Input Current Limit ● 50mA to 3.2A Programmable Constant Current Charge ● Remote Differential Voltage Sensing ● 600kHz or 1.2MHz Switching Frequency Options ● System Instant On with Smart Power Selector PowerPath ● Charge Safety Timer ● Die Temperature Regulation with Thermal Foldback Loop ● Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation ● 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold ● Reverse Buck Mode 5.1V/1.5A to Support USB OTG ● JEITA Compliant with NTC Thermistor Monitor ● I 2C or Resistor Programmable ● 3.458mm x 3.458mm 49-Bump WLP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #MAX77962

Battery Power Management IC Multi-Chemistry 14-TSSOP The bq34210-Q1 1-Series Cell System-Side CEDV Fuel Gauge provides fuel gauging and End-of-Service (EOS) Determination for 1-series cell batteries in applications that encounter infrequent discharge, such as eCall systems and uninterruptible power supplies (UPS) for backup during power failures, where batteries may stay connected to a charging power source most of their lifetime until needed. The bq34210-Q1 fuel gauge supports multiple battery chemistries, including Li-Ion, LiFePO4, and NiMH. The gas gauging function uses voltage, current, and temperature data along with Compensated End-ofDischarge (CEDV) technology to provide State-ofCharge (SOC) and State-of-Health (SOH) data. The device's EOS Determination function alerts when battery capability has degraded and is approaching the end of its usable service. Battery fuel gauging with the bq34210-Q1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery management system. Features 1• Automotive-Qualified AEC-Q100, Grade 3 • 1-Series Cell Battery Fuel Gauge Supports Li-Ion, LiFePO4, and NiMH (3-Cell) Chemistries – Resides on System Board – Powers Directly from the Battery with Integrated LDO – Supports a Low-Value External Sense Resistor (10 mΩ) • Learning Load Enable (LEN) from Host • Ultra-Low Power Consumption in NORMAL (50 µA) and SLEEP (9 µA) Modes • Supports Replacement Batteries • Accurate End-of-Service (EOS) Determination for Batteries in Rarely Discharged Applications • CEDV Gas Gauge for 1-Series Cell Batteries, Providing: – State-of-Charge (SOC) – Time-to-Empty (TTE) – State-of-Health (SOH) • High-Side and Low-Side Current Sensing Options • Internal Temperature Sensor OR External Thermistor • Microcontroller Peripheral Interface Supports: – 400-kHz I 2C™ Serial Interface – Configurable Interrupt (ALERT) for SOC, Battery Levels, Temperature Faults, and Charge/Discharge Status 2 Applications • eCall Systems • Telematics Backup Systems • Uninterruptible Power Supply (UPS) Backup Systems • Emergency Battery Power Modules #BatteryFuelGauge #BatteryManagement #FuelGaugeIC #AutomotiveElectronics #TexasInstruments #LiIonBattery #LiFePO4 #I2C #PowerManagement #AECQ100 #BackupBattery #UPS #EmbeddedSystems

IC Op Amp I Temp SOT-23-5

FLASH - NAND Memory IC 128Gbit Parallel 48-TSOP I #CommonPartsLibrary #IntegratedCircuit #Memory #Flash #MT29F128G08

SM261S4030H0R is an omnidirectional, Top‐ported, I 2 S digital output MEMS microphone. It has high performance and reliability.    MSM261S4030H0R is available in a 4 mm × 3 mm × 1.0 mm metal can LGA package. It is SMT compatible with no sensitivity degradation Cost effective Low Power mode Digital I2S output Compatible with Sn/Pb and Pb‐free solder processes RoHS/Halogen free compliant Sensitivity Matching within +/‐1dB #CommonPartsLibrary #MEMS #Microphone #Vibration-motor

3mm center to center spacing on LEDs There are airwires because I added a terminal first

225k ~ 1.4M Modem PSK 32-QFN (5x5) The DCB1M is a device for multiplex communication over noisy power lines, at speed up to 1.4Mbit/s. The DCB1M is based on the DC-BUS™ technology for network communication between modules sharing a common DC or AC powerline. The device avoids complex cabling, saves weight, and simplifies installation. The DCB1M supports UART, SPI, DMX512, RDM, and I 2C protocols, enabling the user to meet this application protocol. Sleep mode allows low power consumption when the device is not used. A QFN32 5x5 mm package provides a small PCB footprint The DCB1M is beneficial for many applications ranging from LED, Aerospace, Automotive, Industrial, and even Toys. Features • Noise robust UART, SPI, DMX512, RDM, and I2C transceiver over DC powerline. • Bitrate up to 1.4Mbit/s over the powerline. • Multiple networks may operate over a single powerline. • 251 selectable carrier frequencies (5MHz to 30MHz). • Built-in CSMA/CA (powerline arbitration) mechanism. • Operates as Multi-master Transceiver in a multiplex network. • Channel interference detection. • Communicates over a wide range of DC voltages. • Power management (Sleep modes) for low power consumption.

1000 pF ±5% 1000V (1kV) Ceramic Capacitor C0G, NP0 2220 (5750 Metric) KEMET high-voltage C0G MLCC surface-mount ceramic capacitor, temperature-compensating Class I dielectric, capacitance range from 1pF to 0.15µF, voltage ratings from 500V to 10kV, extremely low ESR and ESL, high ripple current capability, negligible capacitance shift with temperature and voltage, no piezoelectric noise, -55°C to +125°C operating temperature, RoHS/REACH compliant, suitable for resonant circuits, high-frequency power converters, snubbers, SiC/GaN wide-bandgap systems, timing and filtering applications. Search Keywords: KEMET high voltage C0G MLCC, KEMET C0G capacitor, high voltage MLCC, C0G ceramic capacitor, Class I MLCC, temperature compensating capacitor, low ESR MLCC, high frequency MLCC, snubber capacitor, resonant capacitor, SiC GaN capacitor, 500V MLCC, 1kV MLCC, 2kV MLCC, 3kV MLCC, 10kV MLCC Hashtags: #KEMETC0G #HighVoltageMLCC #C0GCapacitor #CeramicCapacitor #MLCC #ClassICapacitor #LowESRCapacitor #SnubberCapacitor #ResonantCapacitor #HighFrequencyCapacitor #SiCCapacitor #GaNCapacitor #500VCapacitor #1kVCapacitor #10kVCapacitor

PLUG-OF-NAILS 6-PIN W/O LEGS 8" TC2030 -I DC - NL TC2030-NL

TP4056 1S 1C charger with USB-c connector and battery protection. Copied everything from here: https://easyeda.com/modules/TP4056-Charging-module-USB-C-data_a4752b5b6c6a4c93afdd8b7119d0622c P+ and P- are the outputs but don't have a connector or solder pad yet. Only the schematic has been designed. I didn't do anything on the PCB part! Place these components at your own design! DISCLAIMER: I did not design this nor do i have knowledge about electronics. I'm still learning and i copied this for own use. USE AT OWN RISK!

Change History from V1: -13.56MHz tuning -larger instruction font -put some stuff on the back I wanted to create a business card that has some functionality and shows off a bit of my portfolio IRL: -NFC to my flux page -here's the awesome [instructables](https://www.instructables.com/PCB-Business-Card-With-NFC/) -Put a bunch of modules on it Find the BoM [here](https://www.digikey.com/short/2db2vnmp)

12.4V (Typ) Clamp 5.5A (8/20µs) Ipp Tvs Diode Surface Mount SC-70-3 TPD2E2U06 USB ESD The TPD2E2U06 is a dual-channel low capacitance TVS diode ESD protection device. The device offers ±25-kV contact and ±30-kV air-gap ESD protection in accordance with the IEC 61000-4-2 standard. The 1.5-pF line capacitance of the TPD2E2U06 makes the device suitable for a wide range of applications. Typical application interfaces are USB 2.0, LVDS, and I 2C™. Features 1• IEC 61000-4-2 Level 4 – ±25 kV (Contact discharge) – ±30 kV (Air-gap discharge) • IEC 61000-4-5 Surge protection – 5.5-A Peak pulse current (8/20 µs Pulse) • IO Capacitance 1.5 pF (Typ) • DC Breakdown voltage 6.5 V (Min) • Ultra-Low leakage current 10 nA (Max) • Low ESD clamping voltage • Industrial temperature range: –40°C to +125°C • Small easy-to-route DRL and DCK package #CommonPartsLibrary #TVS-diode

This is an 8-layer diode-based VCA audio compressor PCB Design that works in mono. The compressor has LED-based gain reduction metering, input gain preamplification control, output gain control, and a fast-attack switch akin to the SSL channel-strip compressors. Included is a full-wave rectifier module I published to the library which is connected to a peak detector block for the attack and release implementation. The module is to be powered by a regular outlet.

Zero-drift bidirectional current/power monitor with I²C interface The INA219 is a current shunt and power monitor with an I 2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying register calculates power in watts. The I 2C- or SMBUS-compatible interface features 16 programmable addresses Key Features Measures bus voltages from 0 V to 26 V Calculates and reports current, voltage, and power Bidirectional current sensing capability I²C / SMBus-compatible interface Up to 16 programmable I²C addresses High accuracy version (INA219B) with 0.5% maximum error over temperature Programmable conversion time and digital filtering Internal calibration register for direct current measurement in amperes Internal power calculation register for direct power readout in watts Single supply operation from 3 V to 5.5 V Low supply current consumption (typically less than 1 mA) Operating temperature range: −40°C to +125°C Available in SOIC-8 (DR package) and SOT23-8 package options. #CommonPartsLibrary #IntegratedCircuit #PowerManagement

High-Accuracy, Low-Power, Digital Temperature Sensor With SMBus- and I2C-Compatible Interface The TMP117 is a high-precision digital temperature sensor. It is designed to meet ASTM E1112 and ISO 80601 requirements for electronic patient thermometers. The TMP117 provides a 16-bit temperature result with a resolution of 0.0078 °C and an accuracy of up to ±0.1 °C across the temperature range of –20 °C to 50 °C with no calibration. The TMP117 has in interface that is I 2C- and SMBus™-compatible, programmable alert functionality, and the device can support up to four devices on a single bus. Integrated EEPROM is included for device programming with an additional 48-bits memory available for general use. The low power consumption of the TMP117 minimizes the impact of self-heating on measurement accuracy. The TMP117 operates from 1.7 V to 5.5 V and typically consumes 3.5 μA. For non-medical applications, the TMP117 can serve as a single chip digital alternative to a Platinum RTD. The TMP117 has an accuracy comparable to a Class AA RTD, while only using a fraction of the power of the power typically needed for a PT100 RTD. The TMP117 simplifies the design effort by removing many of the complexities of RTDs such as precision references, matched traces, complicated algorithms, and calibration. The TMP117 units are 100% tested on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 accredited standards. • TMP117 high-accuracy temperature sensor – ±0.1 °C (maximum) from –20 °C to 50 °C – ±0.15 °C (maximum) from –40 °C to 70 °C – ±0.2 °C (maximum) from –40 °C to 100 °C – ±0.25 °C (maximum) from –55 °C to 125 °C – ±0.3 °C (maximum) from –55 °C to 150 °C • Operating temperature range: –55 °C to 150 °C • Low power consumption: – 3.5-μA, 1-Hz conversion cycle – 150-nA shutdown current • Supply range: – 1.7 V to 5.5 V from –55 °C to 70 °C – 1.8 V to 5.5 V from –55 °C to 150 °C • 16-bit resolution: 0.0078°C (1 LSB) • Programmable temperature alert limits • Selectable averaging • Digital offset for system correction • General-purpose EEPROM: 48 bits • NIST traceability • SMBus™, I2C interface compatibility • Medical grade: meets ASTM E1112 and ISO 80601-2-56 • RTDs replacement: PT100, PT500, PT1000 2 Applications • Electronic thermometers • Wireless environmental sensors • Thermostats • Automotive test equipment • Wearable fitness and activity monitors • Cold chain asset tracking • Gas meters and heat meters • Temperature transmitters #CommonPartsLibrary #Sensor