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©2010 Littelfuse, Inc

Revised: May 10, 2010 09:33 PM

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

Qxx25xx & Qxx25xHx Series

25 Amp Standard & Alternistor (High Commutation) Triacs

Qxx25xx & Qxx25xHx Series

Description

25 Amp bi-directional solid state switch series is designed

for AC switching and phase control applications such as

motor speed and temperature modulation controls, lighting

controls, and static switching relays.

Standard type devices normally operate in Quadrants I & III

triggered from AC line.

Alternistor type devices only operate in quadrants I, II, & III

and are used in circuits requiring high dv/dt capability.

Features & Benefits

junctions

to 1000 V

to 250 A

Main Features

Symbol

Value

Unit

I

T(RMS)

25

A

V

1000

V

I

GT

50 to 80

mA

Schematic Symbol

MT2

MT1

G

Agency Approval

Agency

Agency File Number

®

TO-220L, TO-218K, TO-218J &

Fastpak Packages: E71639

Applications

Excellent for AC switching and phase control applications

such as heating, lighting, and motor speed controls.

Typical applications are AC solid-state switches, industrial

power tools, exercise equipment, white goods and

commercial appliances.

Alternistor Triacs (no snubber required) are used in

applications with extremely inductive loads requiring

highest commutation performance.

Internally constructed isolated packages are offered for

ease of heat sinking with highest isolation voltage.

®