Thyristor Product Catalog
L.
U.
D
ZE
NI
4
G
O 1639
EC #E7
R
d
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l
Se
P
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ag
k
ac
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Fi
TO-220AB
THERMOTAB
TO-218AC
TO-218X
MT2
FASTPAK
MT1
G
Alternistor Triacs
(6 – 40 Amps)
4
General Description
Teccor offers bidirectional alternistors with current ratings from
6 to 40 amperes and voltages from 200 to 1000 volts as part of
Teccor's broad line of thyristors. Teccor's alternistor has been
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
triggered from a blocking to conduction state for either polarity of
applied AC voltage with operating modes in Quadrants I, II, and
III.
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 offers a reliable barrier against junction contamination.
Variations of devices covered in this data sheet are available for
custom design applications. Please consult factory for further
information.
Features
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•
•
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High surge current capability
Glass-passivated junctions
2500VAC isolation for “L,” “J,” “P,” and “K”
High commutating dv/dt
High static dv/dt
These alternistors are offered in TO-218X, TO-218AC, FastPak,
and TO-220AB packages. Teccor's TO-218X package has been
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 2500VRMS.
Teccor Electronics
+1 972-580-7777
http://www.teccor.com
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