KQ221K03 Powerex - Bipolar Transistor Module

KQ221K03 Description

KQ221K03 is an 870 V, 30 A bipolar power transistor made by Powerex. It was a workhorse in drives and power supplies before IGBTs took over, and it is still needed to repair that equipment.

We help engineers and repair technicians find parts like the KQ221K03, including obsolete ones. Send a quick RFQ for current pricing and delivery. Before ordering, please confirm ratings and pin-out with the official datasheet.

Summary of Features

Target Applications

Powerex KQ221K03 is used for motor drives and inverters, servo amplifiers, UPS systems, welding machines and other industrial power switching equipment.

Key Specifications

Manufacturer	Powerex
Category	Bipolar Transistor Module
Rated voltage	870 V
Rated current	30 A