s*
IZED
Selected Package
File #E71639
E4
U.L. RECOGN
*TO-220
*TO-218X
*TO-218
TO-252
D-Pak
TO-251
V-Pak
TO-263
2
D Pak
MT2
MT1
G
Alternistor Triacs
(6 A to 40 A)
GE4eneral Description
Teccor offers bidirectional alternistors with current ratings from
6 A to 40 A and voltages from 200 V to 1000 V as part of Teccor's
broad line of thyristors. Teccor's alternistor is specifically
designed for applications that switch highly inductive loads.
A special chip offers the same performance as two thyristors
(SCRs) wired inverse parallel (back-to-back), providing better
turn-off behavior than a standard triac. An alternistor may be trig-
gered from a blocking to conduction state for either polarity of
applied AC voltage with operating modes in Quadrants I, II,
and III.
Variations of devices covered in this data sheet are available for
custom design applications. Consult the factory for further
information.
This new chip construction provides two electrically separate
SCR structures, providing enhanced dv/dt characteristics while
retaining the advantages of a single-chip device.
All alternistors have glass-passivated junctions to ensure long-
term reliability and parameter stability. Teccor's glass-passivated
junctions offer a reliable barrier against junction contamination.
Teccor's TO-218X package is designed for heavy, steady power-
handling capability. It features large eyelet terminals for ease of
soldering heavy gauge hook-up wire. All the isolated packages
have a standard isolation voltage rating of 2500 V rms.
Features
•
•
•
•
•
High surge current capability
Glass-passivated junctions
2500 V ac isolation for L, J, and K Packages
High commutating dv/dt
High static dv/dt
©2002 Teccor Electronics
Thyristor Product Catalog
E4 - 1
http://www.teccor.com
+1 972-580-7777
TECCOR [ TECCOR ELECTRONICS ]
