Thyristors
25 Amp High Temperature Alternistor Triacs
RoHS
QJxx25xHx Series
Description
This 25A alternistor triac 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 alternistor triac components operate with
in-phase signals in quadrants I or III and only unipolar
negative gate pulses for quadrant II or III. The alternistor
triac will not operate in quadrant IV.
Features & Benefits
Agency Approvals
• Voltage capability up to
600V
• Recognized to UL 1557
as an Electrically Isolated
Semiconductor Devices
Agency
Agency File Number
E71639*
• Surge capability of 250A
at 60Hz half cycle
* - J, K and L Packages
• Halogen free and RoHS
compliant
Main Features
Symbol
Value
Unit
IT(RMS)
25
A
V
Applications
V
DRM/VRRM
400,600, or 800
35 to 80
IGT
mA
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.
Schematic Symbol
AlternistorTriacs (no snubber required) are used in
applications with high inductive loads requiring the highest
commutation performance.
MT2
MT1
Isolated packages offered for ease of heat sinking.
G
©2019 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 10/29/19