The WSR5R0300FEA is a Power Metal Strip® resistor manufactured by Vishay. This resistor is engineered for high-power current sensing applications where a low resistance value and high surge capability are crucial.

Applications:

• Current sensing in power supplies and voltage regulators
• Automotive applications (e.g., battery management systems, motor control)
• Industrial control systems
• High-power inverters and converters
• Overcurrent protection circuits
• Pulse loading applications

Features:

• Low Resistance Value: 0.03 Ohms, enabling precise current measurement with minimal voltage drop.
• High Power Rating: Designed for high-power dissipation in a compact package.
• Power Metal Strip® Construction: Provides excellent stability and low inductance for accurate measurements.
• High Surge Withstanding: Robust design to withstand high surge currents, enhancing reliability.
• Low TCR: Offers a low Temperature Coefficient of Resistance, ensuring stable resistance over a wide temperature range.
• RoHS Compliant: Environmentally friendly and meets RoHS directives.

Benefits:

• Precise Current Measurement: Enables accurate monitoring and control of current in various circuits.
• High Reliability: Robust construction ensures reliable performance in harsh environments.
• Improved Efficiency: Low resistance minimizes power loss, contributing to higher system efficiency.
• Compact Size: Allows for space-saving designs in densely populated circuit boards.
• Stable Performance: Maintains stable resistance values under varying temperature and load conditions.

Additional Details:

The WSR5R0300FEA features a resistance tolerance of 1%. It operates over a temperature range of -65°C to +170°C. The Power Metal Strip® construction minimizes self-inductance, making it suitable for high-frequency applications. Designers should refer to the datasheet for detailed specifications, including power derating curves and recommended mounting guidelines. The resistor is also lead-free and compliant with environmental regulations.