TT ELECTRONICS / WELWYN OAR-1 Series Current Sense Resistor - 3

The TT ELECTRONICS / WELWYN OAR-1 Series Current Sense Resistor is a high-performance, through-hole component designed for precise and reliable current measurement in demanding electronic circuits. As part of the OAR (Open Air Resistor) series, it features a durable metal strip element and radial leads for robust through-hole mounting.

These resistors are engineered to offer very low resistance values, making them ideal for current sensing applications where minimal voltage drop and high accuracy are critical. The 1-watt power rating ensures stable operation under typical load conditions, while the robust construction provides excellent endurance and reliability over time.

A key advantage of the OAR-1 series is its superior surge performance, allowing it to withstand transient overloads without degradation. The design isolates the hot spot from the PCB material, protecting the board from excessive heat and enhancing long-term system reliability. With an endurance rating of 1000 hours at 25°C, this resistor is built for continuous, dependable service.

The component operates effectively across a wide temperature range from -40°C to +125°C, making it suitable for use in challenging environmental conditions, from industrial controls to automotive electronics. Its low-temperature coefficient of resistance ensures minimal value drift with temperature changes, maintaining measurement accuracy.

This current sense resistor is an excellent choice for power supplies, motor controls, battery management systems, and any circuit requiring precise current monitoring. Its combination of low resistance, high power handling, and stable electrical characteristics makes it a fundamental component for professional and industrial electronic design.

Variant Details

• Size: 3