TT ELECTRONICS / WELWYN Wirewound Resistor, W21 Series - 7W

The TT ELECTRONICS / WELWYN Wirewound Resistor from the W21 series is a high-power axial-leaded component designed for demanding electronic applications requiring stability under thermal and electrical stress. Its robust wirewound construction ensures reliable performance in circuits where precise resistance and effective power dissipation are critical.

With a generous 350°C maximum operating temperature, this resistor is engineered to withstand high ambient temperatures and self-generated heat, making it suitable for power supplies, motor controls, and industrial equipment. The component offers excellent long-term stability, a key factor in maintaining circuit integrity and preventing performance drift over time.

Featuring a low temperature coefficient of ±75ppm/°C, it provides stable resistance values across a wide operational range from -55°C to +350°C. This characteristic is essential for applications sensitive to thermal fluctuations, ensuring consistent behaviour and minimising circuit errors due to temperature changes.

The axial leaded package allows for straightforward through-hole PCB mounting or point-to-point wiring, offering versatility in both prototype and production assemblies. The resistor's durable construction and specified 100V voltage rating make it a dependable choice for a variety of electrical environments, from consumer electronics to more rugged industrial controls.

This component is a fundamental part of any engineer's or technician's toolkit, providing a robust solution for current limiting, voltage division, and power dissipation needs where standard carbon film resistors may be insufficient.

Variant Details

• Size: 7W