The WSR2-0.003-1.0%-R86 is a precision, low-value, high-power current sense resistor from Vishay. This resistor is designed for accurate current measurement in applications demanding high precision and reliability. 'WSR2' designates the series, '0.003' indicates the resistance value (3 milliohms), '1.0%' is the tolerance, and 'R86' may be a specific manufacturing or packaging identifier.

Applications:

• High-Current Power Supplies
• Battery Management Systems (BMS)
• Motor Control Circuits
• Inverters and Converters
• Overcurrent Protection

Features:

• Ultra-Low Resistance (0.003 Ohms): Minimizes power loss and voltage drop, improving efficiency.
• High Power Rating: Handles substantial current levels with minimal resistance change.
• 1% Tolerance: Provides accurate current measurement.
• All-Welded Construction: Enhances reliability and long-term stability.
• Low Thermal EMF: Minimizes temperature-induced voltage errors.

Benefits:

• Extremely Accurate Current Sensing: Enables precise monitoring and control of current in critical applications.
• High Efficiency: Ultra-low resistance minimizes power dissipation, improving system efficiency and reducing heat generation.
• Reliable Performance: Robust construction ensures consistent and dependable operation over time.
• Suitable for High-Current Applications: Designed to withstand high currents without significant performance degradation.

Additional Details:

The WSR2 series resistors are typically available in a surface-mount package. Key specifications include the resistance value (0.003 Ohms), tolerance (1%), power rating (consult the Vishay datasheet for the specific WSR2 series power rating), temperature coefficient of resistance (TCR), and inductance. Refer to the datasheet for detailed performance characteristics, including power derating curves, thermal resistance, and other relevant parameters. The ultra-low resistance and all-welded construction contribute to its high accuracy and reliability in demanding current sensing applications.