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Thyristor Product Catalog

Bilateral Trigger Diacs

HT and ST Series

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General Description

Teccor’s "HT" and "ST" Series of bilateral trigger diacs offers a

range of voltage characteristics from 27 to 70 volts.

The diac semiconductor is a full-wave or bidirectional thyristor. It

is triggered from a blocking-to-conduction state for either polarity

of applied voltage whenever the amplitude of applied voltage

exceeds the breakover voltage rating of the diac.

The Teccor line of diacs features glass-passivated junctions to

ensure long term device reliability and parameter stability.

Teccor’s glass offers a rugged, reliable barrier against junction

contamination.

The diac specifications listed in this data sheet are for standard

products. Special parameter selections such as close tolerance

voltage symmetry are available. Please consult the factory for

more information for custom design applications. Suffix RP

signifies tape-and-reel packing. Example: HT32RP.

Features

•

Glass passivated junctions

•

Wide voltage range selections

"ST" Series

•

Epoxy SMT package

•

High temperature solder bonded die attachment

"HT" Series

•

DO-35 trigger package

•

Pre-tinned leads

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DO-214AA

DO-35