330 mOhms ±1% 1W Chip Resistor 2512 (6332 Metric) Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #commonpartslibrary #resistor #0805

5m Ohms ±1% 0.25W, 1/4W Chip Resistor 1206 (3216 Metric) Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #CommonPartsLibrary #Resistor #ChipResistor

350µH LAN 10/100 Base-T Pulse Transformer 1:1 Surface Mount #commonpartsLibrary #transformer #pulse

47 Ohms ±5% 1.5W Chip Resistor Wide 1206 (3216 Metric), 0612 Automotive AEC-Q200, Pulse Withstanding Thick Film #commonpartslibrary #resistor

2 mOhms ±1% 7W Chip Resistor Nonstandard Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #CommonPartsLibrary #Resistor #Chip-Resistor #SMD #WSHM2818

1MOhms ±5% 0.25W, 1/4W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #SMD #0603

Isolation and Data Interface (Encapsulated) Pulse Transformer 1CT:1CT Surface Mount #commonpartslibrary #transformer

4.7kOhms ±1% 0.333W, 1/3W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #SMD #0603 #CRCW-HP

Isolation and Data Interface (Encapsulated) Pulse Transformer 1CT:1CT Transmitter, 1CT:1CT Receiver Surface Mount #commonpartslibrary #transformer

0.2 mOhms ±1% 9W Chip Resistor Nonstandard Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element The WSLP3921L2000FEA is a power metal strip current sense resistor manufactured by Vishay Dale, designed specifically for precision current measurement applications in power electronics circuits. It belongs to the WSL/WSLP family, a line of low-resistance, high-power surface-mount resistors built using a metal strip element rather than conventional thick-film or thin-film resistive technology, giving it characteristics that are particularly well suited to current sensing rather than general-purpose resistive applications. The defining characteristic of this component is its very low resistance value, which allows it to be placed in series with a current path while introducing minimal voltage drop and power loss, while still producing a measurable voltage signal proportional to the current flowing through it. This voltage signal can then be read by current-sense amplifiers, comparators, or analog-to-digital converters to provide accurate real-time current feedback for power supply regulation, overcurrent protection, battery management, motor control, and similar applications where knowing the instantaneous current is essential to safe and efficient operation. The metal strip construction used in this series offers a low temperature coefficient of resistance compared to thick-film alternatives, meaning the resistor's value remains more stable across varying operating temperatures, which directly improves the accuracy of current measurements taken over a wide thermal range. The element is also engineered for low thermal EMF and minimal self-inductance, both of which are important for maintaining measurement fidelity in fast-switching power conversion circuits where parasitic effects can otherwise distort the sensed signal. This particular part is qualified to automotive component reliability standards, reflecting its suitability for use in vehicle electrical systems, battery packs, and other safety- or reliability-critical power applications where component robustness under thermal cycling, vibration, and long-term stress must be assured. The device also features moisture-resistant and pulse-withstanding construction, along with a nonstandard anti-sulfuration design intended to resist corrosion-related resistance drift that can occur in resistors exposed to sulfur-containing environmental contaminants over time, a known failure mode in some conventional thick-film resistor technologies. The component is housed in a surface-mount package and is supplied on tape-and-reel packaging suitable for automated assembly, with construction compliant to RoHS material restrictions. Spec Sheet Identification Part Number: WSLP3921L2000FEA Series: WSLP Manufacturer: Vishay Dale Functional Classification Device Type: Current sense resistor Construction: Power metal strip element Application Role: Series current-sensing element for analog current measurement Electrical Characteristics Resistance Value: Ultra-low resistance class, optimized for current sensing Resistance Tolerance: Tight tolerance class for measurement accuracy Power Rating: High power dissipation class for its footprint Temperature Coefficient of Resistance: Low TCR for stable measurement across temperature Thermal EMF: Low thermal EMF construction Self-Inductance: Low parasitic inductance, suited to fast-switching circuits Reliability & Environmental Features Anti-Sulfuration: Nonstandard anti-sulfur construction for corrosion resistance Moisture Resistance: Moisture-resistant build Pulse Withstanding: Rated for pulse-load withstanding capability Automotive Qualification: AEC-Q200 qualified RoHS Compliance: Yes Mechanical Specifications Case Size Class: 3921 surface-mount footprint Mounting Method: Surface mount technology (SMT) Terminal Construction: Metal strip element with welded or clad terminations per series design Packaging Packaging Format: Tape-and-reel Packaging Code Meaning: Suffix denotes lead-free, standard reel quantity packaging #WSLP3921 #VishayDale #Vishay #CurrentSenseResistor #MetalStripResistor #PowerResistor #ShuntResistor #AECQ200 #CurrentSensing #PowerElectronics #SMTResistor #BatteryManagement #MotorControl #OvercurrentProtection #ResistorDatasheet #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #RoHSCompliant #PassiveComponent

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

350µH LAN 10/100 Base-T, Power over Ethernet (PoE) Pulse Transformer 1:1 Surface Mount #CommonPartsLibrary #Transformer #SM

17.4k Ohms ±1% 0.333W, 1/3W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #SMD #0603

100 kOhms ±1% 0.75W, 3/4W Chip Resistor 1206 (3216 Metric) Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #ChipResistor

120µH HDBase-T Pulse Transformer 1:1 Surface Mount #commonpartslibrary #transformer

Infrared (IR), Visible Emitter 536nm, 660nm, 950nm 1.3V, 1.9V, 2.3V 40mA, 80mA, 200mA 3.7mW/sr @ 80mA 120° 8-SMD, No Lead The SFH 7018A is a high-performance 3-in-1 multi-emitter LED module from ams OSRAM designed for optical vital-sign monitoring applications. It integrates green, red, and infrared LEDs into a compact reflective QFN package optimized for wearable health devices such as smartwatches, fitness bands, pulse oximeters, and medical monitoring equipment. The device features a dual-cavity optical structure that minimizes optical interference between emitters, improving heart-rate and SpO₂ measurement accuracy. Key Features Integrated green, red, and infrared LEDs in one package Wavelengths: Green: 536 nm Red: 660 nm Infrared: 950 nm Optimized for: Heart-rate monitoring SpO₂ sensing PPG (photoplethysmography) Highly reflective QFN SMT package Advanced 2-cavity design for reduced optical crosstalk Low forward voltage operation optimized for battery-powered devices Can operate without a boost converter in many designs Wide viewing angle: 120° Surface-mount package: 8-SMD, no lead Operating temperature range: −40°C to +85°C Emitters can be driven independently Suitable for compact wearable and medical electronics #CommonPartsLibrary #LED #Infrared

50 mOhms ±1% 1W Chip Resistor 1206 (3216 Metric) Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #CommonPartsLibrary #Resistor #ChipResistor

510 Ohms ±0.5% 0.5W, 1/2W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #ChipResistor

750 Ohms ±5% 0.333W, 1/3W Chip Resistor 0603 (1608 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #SMD #0603

10 mOhms ±1% 0.1W, 1/10W Chip Resistor 0603 (1608 Metric) Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #CommonPartsLibrary #Resistor #SMD #0603

6 mOhms ±1% 3W Chip Resistor Nonstandard Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Pulse Withstanding Metal Element #commonpartslibrary #resistor #smd

3 kOhms ±5% 0.5W, 1/2W Chip Resistor 1210 (3225 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #RNCL

10 kOhms ±1% 0.25W, 1/4W Chip Resistor 0402 (1005 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #ChipResistor

510k Ohms ±1% 0.25W, 1/4W Chip Resistor 0402 (1005 Metric) Automotive AEC-Q200, Pulse Withstanding Thick Film #CommonPartsLibrary #Resistor #ChipResistor