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ST Community Manager
August 22, 2026
Solved

identify this diode ?

  • August 22, 2026
  • 2 replies
  • 24 views

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Can anyone identify this diode and suggest an alternative please?

ST E

ET

C453

 

Best answer by AScha.3

probably:

ET
SM6T33A
SGS-Thomson Microelectronics
DO-214AA
Transient voltage supressor
Vrwm=28.2V, Vbr=31.4..34.7V, 13.1A, 600W(1ms)
 
from ds:
fbc1d2c5-225a-bb00-db63-39796cf7489b.png7d4d56cf-1613-d5f6-f090-b0fadb2c3926.png

 

ET  marking.

at mouser:

f54aafae-c48e-bede-bc37-fabca4f5593f.png

+

why alternative ?

....

similar 28V :

4806bc14-b013-1018-fcc4-dae5f02016d7.png

cheaper, more peak current: 100A

1855a762-3049-e027-93fb-d12e5f8788ef.png

 

2 replies

AScha.3
AScha.3Best answer
Super User
August 22, 2026

probably:

ET
SM6T33A
SGS-Thomson Microelectronics
DO-214AA
Transient voltage supressor
Vrwm=28.2V, Vbr=31.4..34.7V, 13.1A, 600W(1ms)
 
from ds:
fbc1d2c5-225a-bb00-db63-39796cf7489b.png7d4d56cf-1613-d5f6-f090-b0fadb2c3926.png

 

ET  marking.

at mouser:

f54aafae-c48e-bede-bc37-fabca4f5593f.png

+

why alternative ?

....

similar 28V :

4806bc14-b013-1018-fcc4-dae5f02016d7.png

cheaper, more peak current: 100A

1855a762-3049-e027-93fb-d12e5f8788ef.png

 

If you feel a post has answered your question, please click on " Best Answer ".
ST Migration account
ST Community Manager
August 22, 2026

Thank you for such a quick and helpful solution.

This account only shares restored community content posted by members between May 22 and June 9, 2026, who did not register for the new community.