transistor info

ian33 · 10th November 2011, 02:10 AM

do these look normal or fake?

Perry Babin · 02:24 AM

The TIP36 definitely looks fake.
http://www.bcae1.com/repairbasicsfor...mi_TIP36Cb.jpg

The 21193 also looks fake. The die should be soldered to the tab.

This is a 2SD718:
http://www.bcae1.com/repairbasicsfor...d/IMG_8651.jpg

harvie256 · 10th November 2011, 02:31 AM

Maybe it's just me, but it almost looks like the TIP36 has the leg spot welded to the plate?! Or maybe it's soldered and just looks a bit odd in the photo.

ian33 · 10th November 2011, 02:55 AM

OH no
I have been trick again.any good site where i can get real transistors for a cheap price?

Perry Babin · 10th November 2011, 03:00 AM

Genuine and cheap may not be possible.

For the 2SD718 and similar transistor pairs, I'd suggest that you use the FJA4213 and FJA4313. For the TIP35C and 36C, virtually any of the big distributors will have genuine parts (Future, Arrow, Digi-Key, Mouser...).

amc32 · 10th November 2011, 12:54 PM

Btw, where did you buy them from?

ian33 · 10th November 2011, 01:06 PM

hong kong

amc32 · 10th November 2011, 01:08 PM

How about the vendor?

ian33 · 10th November 2011, 10:56 PM

The vendor said they will send me a better quality so i will spare their name for now.

Perry Babin · 10th November 2011, 11:08 PM

If they know that the parts that they sent you are inferior to other parts that they sell, you should cut your losses, buy parts from a reputable distributor and be done with it.

10th November 2011, 02:18 AM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The TIP36 definitely looks fake. http://www.bcae1.com/repairbasicsfor...mi_TIP36Cb.jpg The 21193 also looks fake. The die should be soldered to the tab. This is a 2SD718: http://www.bcae1.com/repairbasicsfor...d/IMG_8651.jpg __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links Last edited by Perry Babin; 10th November 2011 at 02:24 AM.

10th November 2011, 03:00 AM	#5
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Genuine and cheap may not be possible. For the 2SD718 and similar transistor pairs, I'd suggest that you use the FJA4213 and FJA4313. For the TIP35C and 36C, virtually any of the big distributors will have genuine parts (Future, Arrow, Digi-Key, Mouser...). __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

10th November 2011, 12:54 PM	#6
amc32 diyAudio Member Join Date: Mar 2008	Btw, where did you buy them from? __________________ ...............I Hear in color.................

10th November 2011, 01:08 PM	#8
amc32 diyAudio Member Join Date: Mar 2008	How about the vendor? __________________ ...............I Hear in color.................

10th November 2011, 11:08 PM	#10
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	If they know that the parts that they sent you are inferior to other parts that they sell, you should cut your losses, buy parts from a reputable distributor and be done with it. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links


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10th November 2011, 02:31 AM	#3
harvie256 diyAudio Member Join Date: Oct 2009	Maybe it's just me, but it almost looks like the TIP36 has the leg spot welded to the plate?! Or maybe it's soldered and just looks a bit odd in the photo.

10th November 2011, 02:55 AM	#4
ian33 diyAudio Member Join Date: Jun 2010 Location: the caribbean	OH no I have been trick again.any good site where i can get real transistors for a cheap price?

10th November 2011, 01:06 PM	#7
ian33 diyAudio Member Join Date: Jun 2010 Location: the caribbean	hong kong

10th November 2011, 10:56 PM	#9
ian33 diyAudio Member Join Date: Jun 2010 Location: the caribbean	The vendor said they will send me a better quality so i will spare their name for now.

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