Transistor ID help needed - K72

[messyhead]

Hi folks. Just joined this forum in the hope that you'll be able to help me out, I hope this is the right forum to post in.

I need to replace a transistor on my laptop motherboard that I carelessly knocked off while carrying out a another repair.

The marking on the top of it is 'K72'.

I've done some research, and I think it is an 2N7002W transistor.

The datasheet I've found is here;

**broken link removed**


Can anyone help to confirm that this is the correct one? I'm not sure how to identify the package, but when I look at other SOT-23 transistors, they have different markings. So I'm pretty sure this is the right one and is SOT-323.

I was going to buy them from here;

https://uk.rs-online.com/web/p/mosfet/7082399/

 

[Eddy_C]

Agree !

From Digikey the following link

**broken link removed**

I found following matches:

2N7002DW SOT-363 K72
2N7002T SOT-523 K72
2N7002W SOT-323 K72

It is always the same device (2N7002), in three different packages.
As you have identified your device in a SOT-323 from outer
dimensions, then you can be pretty sure to buy the right one.

 

[messyhead]

Well, I've not actually measured the dimensions. I just searched for K72 transistor, and found the data sheet. It is a smd on a motherboard, and is pretty small. So I think it would be the sot-323 package, but I better go double check it now.

 

[DIDAKE]

Upload image

 

[baraka42]

This may help you ?
https://obrazki.elektroda.pl/13_1333128851.jpg

 

[DIDAKE]

smd code book
72 2N7002 Sil M SOT23 n-ch mosfet 60V 170mA
if you are sure it is a transistor, use a standard n-channel MOSFET and wires. For example IRF 840

I'm not sure that is a MOSFET, as this page is a schottky diode, may appear that looks like a transistor
http://www.marsport.org.uk/smd/mainframe.htm
( Click 7 and read : "72 RB161M-20 Roh I PMDU schottky diode 1A 25V "