Identify 8 leg SMD chip 8305

[Superballbreaker]

Hi to All,
Please, somebody can help me to identify this chip labeled 8305 and 1323 ( probably date )? It is mounted on a led driver. ( convertor 220v-12v ) 2x2 legs are shunted.
At least, if somebody could identify the brand.
Any equivalence, even non SMD ?
Thanks.

 

[Martaine2005]

Yes, there are too many to choose from.
It could be a P channel mosfet.

Martin

 

[(*steve*)]

It looks symmetrically wired, so it may well be something simple like a double mosfet.

If so, the two leads ties together are most likely to be the drains, the ones with thin tracks are the gates, and the other two are likely to be the sources.

If any of these leads are connected to a power supply rail, then we could guess at whether they are N or P channel mosfets.

...and that assumes they are mosfets.

If they are switching a known load, then with the the supply voltage(s) we can take a guess at a suitable rating and then look for a similar device.

 

[Arouse1973]

Could be one of these? http://pdf.datasheetcatalog.com/datasheet2/0/00qh8iey70kuoglg7l4i9wfpzepy.pdf
Adam

 

[(*steve*)]

This is more likely, however the appearance of the pads on the board are suggestive that the two gates would be on pins 2 and 3, not 1 and 3.

 

[Superballbreaker]

Thanks to all, I will try with the Fairchild FDR8305

 

[tschiedel]

I have the same problem. Have you identified the chip? I can't identify a manufactor to this brand. Was the fairchild FDR8305 working?
Thanks for your answer in advance!
T.

 

[Martaine2005]

Sorry, we have not got back any feed back to be sure.
That's why the forum asks for feedback..

Martin

 

[tschiedel]

The 8305 can be equivalent wether with FDR 8305 by Fairchild (max. voltage 20V) nor ECH 8305 by Sanyo (max. voltage 60V) for in my print (looks like pic from superballbreaker) the working voltage for the 8305 is direkt rectified from main voltage and therefor 315 volts DC! My print is a DC-converter for LED supplying. It may be very helpfull to know the manufacturer identyfied by the branding seen on pic from superballbreaker.

 

[Kremator]

http://www.ysksemi.com/Upload/file/ME8305_E1.pdf

 

[tschiedel]

Thanks to Kremator!!!!

 

[tschiedel]

http://www.ysksemi.com/Upload/file/ME8305_E1.pdf

Many many Thanks!

 

[tschiedel]

Hi Kremator, do you know where I can get some ME8305? Is there any distributor who sells only one or some pieces?
Tschiedel