Identifying SMD part

Thread Starter

Blue_Electronx

Joined Jun 10, 2019
112
I can't find anything related to this part. The SMD marking is D8H9A and the package is SOT23. It looks like a MOSFET to me, but not 100% sure without the datasheet. It's shorted and I have other boards with the same part burned.

WhatsApp Image 2020-02-23 at 2.05.45 PM.jpeg
 

dl324

Joined Mar 30, 2015
12,917
The SMD marking is D8H9A and the package is SOT23. It looks like a MOSFET to me, but not 100% sure without the datasheet.
Many components come in SOT23. MOSFETs, BJTs, single diode, dual diode, zener, to name a few.

There are lists of SMD marking codes on the internet. See if you can find one.

Another option is to trace enough connectivity around the device in question to make educated guesses possible.
 

SamR

Joined Mar 19, 2019
3,451
jpanhalt came up with a MOSFET and my sites suggest a Voltage Regulator for D8... Both in the same typical SOT-23 case. H9A is also a V Reg. in SOT-23 so maybe dual marked???
 
Top