Littelfuse Qxx25xx Series - Manual

131
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor ® brand Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Qxx25xx & Qxx25xHx Series
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
t

3P)4
DPNQMJBOU
t

(MBTT
o
QBTTJWBUFE

junctions
t

7PMUBHF
DBQBCJMJUZ
VQ

to 1000 V
t

4VSHF
DBQBCJMJUZ
VQ

to 250 A
Main Features
Symbol Value Unit
I
T(RMS)
25 A
V
DRM
/ V
RRM
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.