Can anyone help me ID a blown diode?

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Zelda
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Can anyone help me ID a blown diode?

I connected a high power (16.5A@12V) blade server fan with wrong polarity to a power supply.

The motor driver replied quickly with smoke...innocent

Diode

The diode cracked. I searched with the keywords "ON Semi 949GEE" but I could not find any Information.

Size is about: 8 x 6 x 2.4mm.

Maybe someone can tell me a common diode as replacement.

Thank You!

XXX-Man
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By marking on PCB it is Zener diode.
Only diode with 949 marking I could find from ON Semiconductor was 1SMB5949BT3G
https://www.digikey.co.uk/en/datasheets/on-semiconductor/on-semiconducto...

Not sure if this helps…

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Zelda
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I can't imagine that is a 100v Zener Diode. I have a second working PCB, is there a (non-destructive) way to measure the working Zener Diode?

Kame Sennin
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This is a 1SMC12AT3  = 12V 1500W unidirectional transient voltage supressor

The 949 code is the date code (YWW) while the GEE is the actual component code.

Datasheet

 

Zelda
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Thumbs Up Thank you everyone!