What is this chip?

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View
All it has written on it is:
- FC (this I think is the manufacturer,
- 9501
- K3303

Using datasheetcatalogue.com and K330, it returns a number of FETs
(K3301, 02, 04, 05), but I do not want to assume that this is what the
chip is for.

It was pulled out of an old ATX PSU and had a heat sink of 4"x5" steal
plate all to itself.

I have tried google, but it has only return street addresses, phone
numbers, and other unrelated links.

Re: What is this chip?
finger to keyboard and composed:

Quoted text here. Click to load it

Could it be a 2SK3303 MOSFET? Its manufacturer is identified as "Fuji"
by usbid.com.

"9501" could be a YYWW date code.

I'm assuming it has 3 pins.

Quoted text here. Click to load it

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Re: What is this chip?
Quoted text here. Click to load it

Thanks for that.

Re: What is this chip?
Quoted text here. Click to load it

Why not ?

geoff



Re: What is this chip?
Quoted text here. Click to load it

K330 is also a prefix for other 3 pin chips that are not FETs.

Re: What is this chip?
Quoted text here. Click to load it

In which case they would have last numbers other than "3"   !

Unless they printed K3303 on it just to trick people....

geoff



Re: What is this chip?



Quoted text here. Click to load it

It's clearly a power mosfet.

Graham



Re: What is this chip?



Quoted text here. Click to load it

Big give-away. 2SK3303 presumably. The Japs regularly don't print the "2S"
part of the device number.

Looks to be obsolete but stock is available.

Graham


Re: What is this chip?

"Wayne."
Quoted text here. Click to load it


** Makers nearly always put their logos on devices -  if there is room.

Very useful to know the various logos, to narrow down your search.

http://www.classiccmp.org/rtellason/logos/semiconductorlogos.html



Quoted text here. Click to load it


** The heatsink proves the device is handling lots of power and the 3 legs
means it is a transistor or a FET.

The K prefix ( abbreviation of 2SK...)  in the number indicates it can
logically only be a power FET.

All power FETs have a diode between source and drain pins -  so you can
tests for this, and the gate pin should be open with respect to the other
pins.



......  Phil




Re: What is this chip?



Quoted text here. Click to load it

Nice little test for mosfets to see if they might still be working. Assuming
N-channel as in this case charge the gate positive w.r.t. source with your meter
( it's an enhancement mode Mosfet ) and the device should conduct. Charge the
gate negative and it should not conduct ( except for the inverse diode of course
).

Graham


Re: What is this chip?
Quoted text here. Click to load it

Or stick it on a PEAK  3-terminal semiconductor tester and it will check the
component type, all the vital signs, pin identification,  and
characteristics .

.... if for some reason you disbelieve the printed legending.

geoff



Thank you for the information Re: What is this chip?
Quoted text here. Click to load it

Site Timeline