component identification - GB1390

IMoni · ‎2026-01-20

Hi, can anybody identify this MOSFET please? Google and ST search engine couldn't help me.
Thank you in advance,

István

Peter BENSCH · ‎2026-01-20

Welcome @IMoni, to the community!

The marking GB1309 refers to an IGBT that was discontinued many years ago. It was very similar to the STGB14NC60KD, which has also been discontinued and had these main parameters:

D2PAK, pinning GCE
600V, 14A @ 100°C, 25A @ 25°C
Ptot: 80W @ 25°C
VGEth: 4.5V min, 6.5V max
VCEsat: 2.1V typ @ 25°C, 1.8V @ 125°C
Qg: 34.4nC

Hope this helps?

Regards
/Peter

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RobK1 · ‎2026-01-20

STGB is a prefix for some of STM's IGBTs.

Peter BENSCH · ‎2026-01-20

Welcome @IMoni, to the community!

The marking GB1309 refers to an IGBT that was discontinued many years ago. It was very similar to the STGB14NC60KD, which has also been discontinued and had these main parameters:

D2PAK, pinning GCE
600V, 14A @ 100°C, 25A @ 25°C
Ptot: 80W @ 25°C
VGEth: 4.5V min, 6.5V max
VCEsat: 2.1V typ @ 25°C, 1.8V @ 125°C
Qg: 34.4nC

Hope this helps?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

IMoni · ‎2026-01-20

Hi Peter,

Thank you for your valuable assistance. Your support in identifying the component was extremely helpful. Whit the similar component what you described, I am trying to find a part for the unit to be repaired.

Than you!