KD421K15Powerex - Power Transistor Module

KD421K15 Description

KD421K15 is a dual Darlington transistor module that contains two high-current, high-gain Darlington transistors in a single package. Each transistor consists of two PNP transistors connected in a Darlington configuration, which provides a high current gain and a low saturation voltage. The module is designed for use in a wide range of applications, including motor control, power supply regulation, and audio amplification. The KD421K15 module is housed in a TO-3P package, which is a popular form factor for high-power semiconductors. The package has three leads, with the center lead connected to a metal tab that serves as a heat sink for the transistors. The module is rated for a maximum collector current of 5A and a maximum collector-emitter voltage of 120V. The typical DC current gain of each transistor is 1000, and the typical saturation voltage is 1.5V at a collector current of 3A.

Target Applications

Powerex KD421K15 is used for motor drives and inverters, servo amplifiers, UPS systems, welding machines and other industrial power switching equipment.

Key Specifications

Manufacturer	Powerex
Configuration	Dual Darlington transistor module (two Darlingtons, each with reverse parallel fast-recovery diode), isolated mounting
VCEO(sus)	1000 V
IC	150 A
Terminals	M6
Outline	108 x 62 mm max.

KD421K15 Video

Download KD421K15 Datasheet

KD421K15 PDF Datasheet