IGBTs optimised for welding

Vishay has introduced IGBT power modules specifically for TIG welding machines.

Vishay INT-A-PAK - IGBTs optimised for welding

The devices can work up to 1kHz, 600V and 100-400A.

There are three half-bridges and on single IGBT, and losses are down on its previous offerings through using ‘Trench PT’ construction: collector-emitter voltages are 1.1-1.3V and turn-off switching energy is 11-45mJ – said to be 50% lower than the previous-generation.

The half-bridges have HEXFRED or FRED Pt branded anti-parallel diodes and are available in 17mm high packages.

The single switch device comes in SOT-227, with ≤5nH typical inductance, and UL approval to file E78996.

Part VS-GP100TS60SFPbF VS-GP250SA60S VS-GP300TD60S VS-GP400TD60S
IC 100A 250A 300A 400A
VCE(on) 1.16V 1.10V 1.30V 1.30V
Package INT-A-PACK SOT-227 DIAP, low profile DIAP, low profile
Eoff 15.3mJ 11mJ 33mJ 45mJ
Circuit Half bridge Single switch Half bridge Half bridge
IGBT Trench PT Trench PT Trench PT Trench PT
Diode FRED Pt None HEXFRED HEXFRED

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