The WSR-2 0.05 1% R86 is a high-power, low-value current sense resistor manufactured by Vishay. It is designed for accurate current measurement in a variety of applications. The "R86" likely designates a specific packaging or manufacturing specification within Vishay's production.

Applications:

• Current Sensing in Power Supplies
• Overcurrent Protection Circuits
• Battery Management Systems
• Motor Control Applications
• High-Power Amplifiers

Features:

• Low Resistance Value (0.05 Ohms): Minimizes voltage drop and power loss.
• High Power Rating: Capable of handling significant current levels.
• 1% Tolerance: Provides accurate current measurement.
• All-Welded Construction: Ensures robust and reliable performance.
• Low Inductance: Minimizes inductance-related errors in high-frequency applications.

Benefits:

• Precise Current Measurement: Enables accurate monitoring and control of current flow.
• Reduced Power Loss: Low resistance value minimizes power dissipation, improving system efficiency.
• Reliable Performance: All-welded construction ensures long-term stability and reliability.
• Suitable for High-Power Applications: Can handle significant current levels without significant degradation.

Additional Details:

The WSR-2 series resistors are typically available in a surface-mount package. Key specifications include the resistance value (0.05 Ohms in this case), tolerance (1%), power rating (consult the datasheet for the specific power rating of the WSR-2 series), and temperature coefficient of resistance (TCR). The resistor is designed for a specific operating temperature range. Detailed performance specifications, including the power derating curve and temperature characteristics, are available in the Vishay WSR-2 series datasheet. The all-welded construction contributes to its long-term stability and reliability, making it suitable for demanding applications.