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The WSL1206R0100FEA18 is a current sense resistor based on metal alloy technology, housed in a standard 1206 (3.2mm x 1.6mm) surface-mount package. Its extremely low resistance and excellent power handling capability enable precise measurement of high currents without significantly affecting circuit voltage. The device is designed for long-term stability and environmental resilience, making it suitable for demanding automotive, industrial, and energy applications where precision and reliability are critical.
Category:Resistors;Chip Resistor - Surface Mount
Mfr:Vishay Dale
Series:WSL-HP
Packaging:Tape & Reel (TR);Cut Tape (CT)
Part Status:Active
Resistance:10 mOhms
Tolerance:±1%
Power (Watts):0.5W, 1/2W
Composition:Metal Element
Features:Anti-Sulfur, Automotive AEC-Q200, Current Sense, Moisture Resistant, Operating Temperature:-65°C ~ 170°C
Package / Case:1206 (3216 Metric)
Supplier Device Package:1206
Size / Dimension:0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max):0.035" (0.89mm)
Number of Terminations:2
High Accuracy & Low Resistance: A very low 10 mΩ resistance combined with a ±1% high accuracy allows precise voltage drop measurement in high-current circuits with minimal impact on system efficiency.
Excellent Power Handling: Delivers 0.5 W power dissipation in a compact 1206 package, supporting continuous high-current sensing with high-temperature stability.
Advantages of Metal Alloy Construction: Utilizes metal alloy material with a low temperature coefficient (TCR), providing low thermal EMF, excellent long-term stability, and high pulse withstand capability.
Automotive-Grade Enhanced Reliability: AEC-Q200 qualified with anti-sulfur and moisture-resistant protection ensures long-term reliable operation in harsh automotive and industrial environments.
Wide Operating Temperature Range: Supports extreme temperatures from -65°C to 170°C, suitable for high-temperature or wide-temperature applications such as engine compartments and motor controllers.
Motor Drives & Control: Used for phase current sensing and overcurrent protection in brushless DC (BLDC) motors, servo drives, and power tools.
Power Management & Conversion: Enables inductor current sensing, current sharing, and load monitoring in switch-mode power supplies (SMPS), DC-DC converters, and multi-phase VRMs.
Battery Management Systems (BMS): Provides high-accuracy current monitoring, coulomb counting, and protection in electric vehicle battery packs, energy storage systems, and drone batteries.
Industrial Automation & Process Control: Delivers reliable current feedback signals in PLC output modules, inverters, and welding equipment.
Automotive Electronic Systems: Applied for current sensing in engine control units (ECUs), electric power steering (EPS), onboard chargers (OBC), and 48V mild-hybrid systems.
The WSL1206R0100FEA18 is a current sense resistor that combines high accuracy, high power handling, and automotive-grade reliability. Its robust metal construction and enhanced environmental design make it a cornerstone component for demanding current measurement applications. Whether in stringent automotive powertrains, efficient energy conversion equipment, or precision battery management units, this device delivers stable, accurate, and durable current sensing solutions.
Industry Information
