Can someone ID this Transistor ? Offer Equivalent part ?

[William Heckman]

Its from a SHARP TV LED. Model: LC-26DV24U. Specfically its Q419 on the Power board. Thanks in Advance.

 

[davenn]

hi William, welcome

NB could be a BF599 or a FMMTA55R

I have those 2 listed for that code ... but with the same code often used for many different devices from different manufacturers, one can never be sure

in this case, those 2 choices are the most likely
A service manual would be the only way to tell for sure

Dave

 

[Martaine2005]

NB could be a BF599 or a FMMTA55R

Hi William

Ok, according to the service manual Q419 is. COMPOUND TRANSISTOR KRC102SRTK TNAAB05003
Martin

 

[William Heckman]

Yes, that part matches up with common parts in the SHARP service guide that I have. Multiple points on the board with that part...

Now... WHERE TO BUY THIS PART ????

Thanks!

 

[Martaine2005]

davenn might have posted the equivalent components for you..
Which is why I 'quoted' his post. But his quote is a NPN or PNP.

Check here

Martin

 

[davenn]

davenn might have posted the equivalent components for you..
Which is why I 'quoted' his post. But his quote is a NPN or PNP.

Check here

Martin

no they weren't equiv's they were what was listed for the NB SMD code

 

[Martaine2005]

no they weren't equiv's they were what was listed for the NB SMD code

AH OK, sorry, I thought they might be equivalents but depended on whether NPN or PNP.
Martin

 

[davenn]

hence why I followed the comments with the proviso of same code for many part numbers

in this case those 2 I gave were no good

the Q419 transistor, a compound transistor = a digital transistor with 2 built in resistors and is NPN

the best data for the KRC102SRTK is this one .....
http://pdf.datasheetcatalog.com/datasheet/kec/KRC101_6S.pdf

and that datasheet even shows the correct SMD code NB


Dave

 

[Martaine2005]

and that datasheet even shows the correct SMD code NB

Nice find. I only referenced from the service manual.

 

[davenn]

If Sharp cannot supply a replacement, it may be difficult to find one considering it's a specialist type

 

[William Heckman]

This FORUM IS AWESOME! Parts ordered! Thanks to ALL!

 

[William Heckman]

So I tried to order parts, and the website came back and explained they no longer have them... Any ideas on an eqivalent part anyone ?

 

[dorke]

You can try this one :
Infineon BCR133 in sot-23 package

http://www.infineon.com/dgdl/Infine...n.pdf?fileId=db3a30431428a37301143f7f8a3f0288

Good Luck