Revised: 07/20/17
Specifications are subject to change without notice.
©2017 Littelfuse, Inc
Teccor
®
brand Thyristors
40 Amp Alternistor (High Commutation) and Standard Triacs
Qxx40xx Series
Qxx40xx Series
Description
The 40 Amp bi-directional solid state switch series is
designed for AC switching and phase control applications
such as motor speed, temperature modulation controls,
lighting controls, and static switching relays.
Alternistor type components only operate in quadrants I, II,
& III and are used in circuits requiring high dv/dt capability.
Standard type devices operate in quadrants I,II,III & IV.
Main Features
Symbol Value Unit
I
T(RMS)
40 A
V
DRM
/V
RRM
400 to 1000 V
I
GT (Q1)
50 to 100 mA
Features & Benefits
• RoHS Compliant
• Glass – passivated
junctions
• Voltage capability up to
1000V
• Surge capability up to
400A
• Electrically isolated
K & J -Packages are UL
Recognized for 2500Vrms
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.
Schematic Symbol
Agency Approval
Agency Agency File Number
K & J Packages: E71639
MT1
G
MT2
RoHS