TT ELECTRONICS / WELWYN W22 Series Wirewound Power Resistor - 7W

The TT ELECTRONICS / WELWYN W22 Series power resistor is a robust, axial-leaded component designed for high-reliability applications requiring stable performance under demanding conditions. Constructed using precision wirewound technology, it offers excellent power handling and long-term stability. The flame-retardant coating provides both electrical insulation and mechanical protection, ensuring safe operation in a variety of electronic assemblies.

This resistor is characterised by its low-temperature coefficient, which minimises resistance drift across a wide operating temperature range, making it suitable for circuits where consistent performance is critical. Its high operating temperature rating allows it to function in environments where heat dissipation is a concern, reliably converting electrical energy without significant degradation.

Key Features & Specifications

With a substantial power rating, this component is engineered to manage significant electrical loads. Its axial leaded package facilitates easy mounting on printed circuit boards (PCBs) using through-hole technology, providing a secure and durable connection. The specified resistance tolerance ensures the component meets precise circuit design requirements, contributing to overall system accuracy and reliability.

Typical Applications

This wirewound resistor is ideal for use in power supplies, motor controls, and industrial automation equipment where robust current handling is needed. It is also well-suited for application in automotive electronics, test and measurement instrumentation, and as a current-limiting or voltage-dropping element in various electrical circuits. Its construction and specifications make it a dependable choice for both professional and advanced hobbyist projects.

Variant Details

• Size: 7W