TT ELECTRONICS / WELWYN OAR Series Current Sense Resistor, 0R05, Metal Strip, 1 - 3

The TT ELECTRONICS / WELWYN OAR Series Current Sense Resistor is a high-precision, through-hole metal element resistor designed for accurate current sensing applications. Part of the robust OAR (Open Air Resistor) series, this component offers a low resistance value of 0.05 ohms (0R05) with a tight ±1% tolerance, ensuring reliable and consistent performance in demanding circuits. With a power rating of 1W, it is engineered to handle significant electrical loads while maintaining stability.

Constructed using advanced metal strip technology, this radial leaded resistor delivers superior surge performance, making it ideal for protecting sensitive electronics from current spikes. A key design feature is the isolation of the hot spot from the PCB material, which enhances thermal management and prolongs the lifespan of both the resistor and the board. Its excellent temperature coefficient of resistance (TCR) of ±20ppm/°C ensures minimal resistance drift across a wide operating temperature range from -40°C to +125°C, guaranteeing accuracy in variable environmental conditions.

This current sense resistor is built for endurance, rated for 1000 hours of continuous operation at 25°C. Its robust construction and precise specifications make it a trusted component for engineers designing power supplies, battery management systems, motor controls, and other electronic equipment where accurate current measurement is critical. The radial leaded package facilitates easy manual or automated insertion into printed circuit boards, simplifying the assembly process.

By incorporating this WELWYN OAR series resistor into your design, you benefit from a component that combines precision, durability, and thermal efficiency. It is an essential part for creating efficient, reliable, and safe electronic systems that require dependable current monitoring and protection.

Variant Details

• Size: 3