QFN-68(7x7) Power Management - Specialized ROHS The RK806-1 is a multi-channel PMIC designed to deliver and manage power for modern embedded platforms. It integrates multiple high-efficiency DC-DC buck converters, LDO regulators, and a configurable power sequencing controller in a compact QFN-68 package. It is tightly coupled with Rockchip SoCs and is responsible for generating stable voltage rails for CPU cores, GPU, DDR memory, and peripheral blocks. ⭐ Key Features ⚡ 1. High-Integration Power Architecture Multiple synchronous buck converters (high-current rails for CPU/GPU) Several LDO regulators for low-noise analog and IO domains Supports dynamic voltage scaling (DVS) for performance optimization 🔌 2. Wide Output Capability Output voltage range: ~0.5 V to 3.4 V per channel Designed for modern low-voltage SoC power domains Supports both high-current and low-noise power rails 🧠 3. Programmable Power Sequencing OTP / register-configurable power-up & power-down sequence Ensures safe startup for multi-rail SoCs Supports synchronized sequencing with multiple PMICs 📡 4. Digital Control Interface I²C and SPI interface for configuration and control Real-time voltage adjustment per processor demand Register-based control for power modes and telemetry 🛡️ 5. Protection & Reliability Features Over-voltage protection (OVP) Over-current protection (OCP) Thermal shutdown protection Soft-start for inrush current control ⚙️ 6. Efficiency & Performance Optimizations High-frequency switching (~MHz range) for smaller external components Fast transient response for CPU load changes Low standby current for power-sensitive designs 📦 7. Package & Integration QFN-68 (7×7 mm) compact package High thermal efficiency for dense PCB layouts Minimal external components required 📌 Typical Applications Single-board computers (SBCs) AI edge computing devices Tablets and industrial embedded systems Consumer electronics using Rockchip SoCs (e.g., RK3588 platforms) #commonpartslibrary #integratedcircuit #powermanagement

Slide Switch SPDT Surface Mount, Right Angle #CommonPartsLibrary #Switch #EG

7.2VA Power Transformer 3.3V Primary 6V Secondary Chassis Mount The DA2304-ALD is a compact surface-mount isolation power transformer manufactured by Coilcraft. It is designed primarily for low-voltage DC/DC converter applications, especially in circuits that require galvanic isolation. It is commonly used together with ICs like isolated power drivers (e.g., SN6501) to generate isolated power rails. Type: Isolation / power transformer Mounting: Surface-mount (SMT) Primary Voltage: 3.3 V Secondary Voltage: 6 V (typical) Power Rating: ~7.2 W Turns Ratio: 1 : 2.2 Isolation Voltage: up to 2500 Vrms Windings: Dual primary and dual secondary Core Material: Ferrite Operating Temp: −40°C to +125°C Isolated DC/DC converters Industrial communication interfaces (RS-485, CAN, etc.) Medical or safety-isolated systems Powering isolated gate drivers or transceivers Small footprint (~10 × 8 mm, low profile ~6 mm) #Transformer

Hongfa Europe GMBH PCB Mount Power Relay, 5V dc Coil, 5A Switching Current, SPS The HF49FD/005-1H11TF is part of the Hongfa HF49FD series, which consists of compact, high-sensitivity power relays. It operates using a 5 V DC coil and provides electrical isolation between the control circuit and the load, allowing low-power signals (e.g., from a microcontroller) to switch higher voltages or currents. Key Characteristics Type: Electromagnetic relay (non-latching) Contact Configuration: SPST-NO (1 Form A, normally open) Coil Voltage: 5 V DC Switching Current: up to 5 A Switching Voltage: 250 VAC 30 VDC Mounting Type: Through-hole / PCB mount Size: ~20 × 5 × 12.5 mm (slim design) Coil Power Consumption: ~120 mW (low power) Dielectric Strength: up to 3 kV isolation Functional Overview Uses a coil + mechanical contacts: When 5 V is applied → coil energizes → contacts close When removed → contacts open Provides electrical isolation between: control side (low voltage) load side (higher voltage/current) #Relay

Connector Header Through Hole 10 position 0.100" (2.54mm) The TSW-105-07-G-D is part of the Samtec TSW series, which consists of 0.100″ (2.54 mm) pitch PCB header strips. It is a dual-row, 10-position (2×5) male pin header intended for through-hole mounting on printed circuit boards. This connector provides a simple and reliable way to connect PCBs or interface with cables and other connectors (e.g., female sockets or IDC connectors). Key Features Connector Type: Rectangular header (male pin) Mounting Type: Through-hole (THT) Pitch: 2.54 mm (0.100″ standard spacing) Number of Positions: 10 pins Rows: Dual-row (2×5 configuration) Contact Style: 0.025″ (0.635 mm) square posts Orientation: Vertical (straight header) Plating: Gold (indicated by “G”) for reliable contact Electrical & Mechanical Highlights Current Rating: up to ~6.3 A per contact (series typical) Voltage Rating: up to ~400–550 VAC Operating Temperature: approx. -55 °C to +125 °C High durability: supports multiple mating cycles (extended-life design) Typical Applications Microcontroller and development boards Board-to-board connections Prototyping systems (breadboard-compatible headers) Industrial and embedded electronics Cable-to-board interfaces #CommonPartsLibrary #Connector #Header #TSW

Ultra Efficient Dual Sources Energy Manager with Ratio/Constant Voltage Regulation, Regulated Buck Output and 5 V Charger, 120 mV, 135 mA The AEM13921 is a fully integrated and compact power management circuit that extracts DC power from two harvesting sources to store energy in a rechargeable storage element and supply an application circuit. A 5 V input can also be used to charge the storage element (e.g., if it gets depleted). This compact and ultra-efficient PMIC allows for extending battery lifetime and eliminating the primary energy storage in a large range of applications. Both sources implement Maximum Power Point Tracking (MPPT) based on open-circuit voltage ratio as well as constant source voltage regulation features, allowing for harvesting the maximum power available from each source to charge the storage element. With its unique cold-start circuit, it can start operating with an input voltage as low as 275 mV (min. 1.5 µW power). The configurable protection thresholds prevent overcharging and overdischarging the storage element. No external components are required to set those thresholds. The thermal monitoring prevents charging and discharging the storage element outside a configurable temperature range. The Average Power Monitoring (APM) allows the application circuit to get an estimate of the energy harvested from each source to the battery and from the battery to the application circuit. A shipping mode is available to avoid charging and discharging the storage element during shipping or storage. A buck regulator with selectable output voltage allows an application circuit to be supplied with high efficiency. I²C communication allows users to control every setting of the AEM13921 from the application circuit MCU. Features and Benefits Dual sources inputs - Boost operation optimized for each source. - Conversion efficiency above 90 % on each source. - Harvests from 120 mV after cold start. - Simultaneous harvesting from both sources. - Up to 135 mA current extracted from the harvester. Maximum Power Point Tracking - Both sources configurable to constant voltage mode or to open-circuit voltage ratio mode. - Optimal harvesting from a multiple combinations of harvesters (PV cells, RF, vibration, pulsed sources...). Cold start from 275 mV / 1.5 µW input - Startup at ultra-low power from each harvesting source input. Configurable overdischarge & overcharge protection - Supports various types of rechargeable storage elements (LiC, Li-ion, LiPo, Li-ceramic pouch...). Regulated output for application circuit - Buck regulator conversion efficiency up to 96 %. - Selectable output voltage between 0.6 V and 3.3 V. - Output current up to 100 mA. Thermal monitoring - Storage element protection against overtemperature and under-temperature during charging and discharging, independently. Average Power Monitoring - Provides data to determine how much energy has been transferred to the storage from each source and from the 5 V charger, as well as the energy drained from the storage to supply the application circuit. System configuration by GPIO or I²C communication - All settings dynamically configurable through GPIO or I²C (Fast Mode Plus). - System data available through I²C. Shipping mode - Storage element charge and discharge disabling during shipment. External 5 V charging capability - Extra charging input for 5 V power supplies. - Configurable CC and CV modes (max. 135 mA). - Provides a fast charging alternative when no source is available for a long time. #AEM13921 #EnergyHarvesting #PowerManagementIC #PMIC #MPPT #BatteryCharging #EnergyAutonomous #IoT #WirelessSensor #IndustrialMonitoring #EmbeddedSystems #QFN #epeas #LowPowerDesign

2.4GHz -98dBm SMD,19.2x18mm RF Transceiver Modules and Modems RoHS The ESP32-WROOM-32UE-N16 is a 2.4 GHz wireless MCU module built around the ESP32 SoC. It combines a dual-core processor, integrated Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 (Classic + BLE), along with rich peripherals. The “UE” variant specifically uses a U.FL / IPEX connector for an external antenna, making it ideal for applications that require better RF performance or flexible antenna placement (e.g., enclosed products or long-range communication). The “N16” indicates 16 MB external flash memory, suitable for large firmware, OTA updates, and data-heavy applications. Processing Dual-core Xtensa LX6 32-bit CPU Clock speed up to 240 MHz Memory 16 MB Flash (N16 variant) ~520 KB SRAM + 448 KB ROM Connectivity Wi-Fi: 802.11 b/g/n (up to 150 Mbps) Bluetooth: v4.2 (BR/EDR + BLE) Frequency: 2.4 GHz band Antenna External antenna via U.FL connector Better range and flexibility vs PCB antenna Interfaces / Peripherals GPIO (≈26 usable pins) UART, SPI, I2C, I2S, SDIO ADC, DAC PWM (LED & motor control) Capacitive touch sensing Security Hardware encryption: AES, SHA, RSA Secure boot & flash encryption support Power Operating voltage: 3.0V – 3.6V (typ. 3.3V) Multiple low-power modes for battery applications Environmental Operating temperature: -40°C to +85°C Physical Surface-mount module (~38 pins / 52 pads depending on reference) Compact and RF-shielded design Typical Applications Smart home devices (IoT) Industrial automation Wireless sensors and data loggers Wearables and consumer electronics Remote monitoring systems #Module #ESP32

14V Clamp 2.5A (8/20µs) Ipp Tvs Diode Surface Mount 2-X1SON (1x.60) TVS diode USB VBUS 5V TVS diode USB VBUS 5V ESD protection General Description The TPD1E05U06DPYR is a single-channel transient voltage suppression device designed to protect sensitive electronic components from electrostatic discharge (ESD) and other transient voltage events. It is engineered for high-speed signal applications, offering low capacitance to preserve signal integrity while providing robust protection. The device is suitable for integration into compact and portable electronic systems where space, reliability, and performance are critical. Device Identification Part number: TPD1E05U06DPYR Device classification: ESD protection diode / transient voltage suppressor Manufacturer: Commonly associated with Texas Instruments Mounting type: Surface-mount Package style: Ultra-small leadless package (e.g., X2SON/DFN) Functional Description Protects circuits from high-voltage transients caused by ESD events Limits voltage spikes by clamping them to safe levels Maintains signal quality by minimizing added capacitance Operates transparently under normal signal conditions Provides fast response to transient disturbances Performance Characteristics Low capacitance suitable for high-speed data lines High ESD protection capability compliant with standard test models Low leakage current during normal operation Fast transient response time Stable performance across specified operating conditions Electrical Characteristics Designed for low-voltage applications (approximately 5 V working range) Low clamping voltage to protect downstream components Minimal dynamic resistance Very low input/output capacitance High reliability under repeated ESD stress Application Scope High-speed communication interfaces such as USB, HDMI, and display ports Mobile phones, tablets, and wearable electronics Embedded systems and microcontroller interfaces Consumer and industrial electronic equipment Data and signal line protection in compact devices Mechanical and Physical Properties Compact footprint for high-density PCB layouts Leadless package for improved mechanical robustness Compatible with standard surface-mount assembly processes Designed for automated manufacturing environments Integration Guidelines Install as close as possible to the external connector or entry point Ensure a low-impedance path to ground for optimal protection Minimize trace length between the device and the protected line Consider layout practices to preserve high-speed signal integrity Verify compatibility with system voltage and interface requirements #commonpartslibrary #circuitprotection #tvsdiode

JST PH Connector Header Through Hole 2-pin 0.079" (2.00mm) battery connector JST PH 2 pin The B2B-PH-K-S is a 2-position vertical header connector with a 2.0 mm pitch, designed for mating with JST PH series crimp housings (e.g., PHR-2). It is commonly used in consumer electronics, battery connections, and small embedded systems due to its compact size and secure locking mechanism. Key Features Series: JST PH Series Number of Pins: 2 Pitch: 2.0 mm Mounting Type: Through-hole (vertical) Contact Type: Male pin header Mating Type: Friction lock (secure connection) Current Rating: ~2 A (typical, depends on wire and conditions) Voltage Rating: ~100 V Contact Material: Copper alloy (tin-plated) Housing Material: UL94V-0 rated plastic (flame-retardant) Operating Temperature: Typically -25°C to +85°C Typical Applications Battery connectors (Li-ion/LiPo packs) Power supply connections in small devices Embedded systems (e.g., Arduino, sensors) Consumer electronics (fans, LEDs, small appliances) #CommonPartsLibrary #Connector #Header #JST-PH