SOT 23-6 marked as 7MH.....what it could be?

[Francesc V.]

I am trying to repair a modeling railroad decoder because rear light remains glowing.

It's connected to a really tiny SOT23-6 chip that is marked as 7MH. Any idea what it could be? (it's a LaisDCC decoder).

Thanks in advance,
Francesc.

[truclacicr]

A photo of the PCB might help to identify the IC.

[harp]

UM4750S-MH?

[Francesc V.]

I finally have been able to identify it............it's a MUN5235DW1T1. (Dual Bias ResistorTransistors)

[truclacicr]

MUN5235DW1

https://www.mouser.com/datasheet/2/3...D-D-346531.pdf

http://markingcodes.com/search/c/7m