Different pinout for the same BJT

alfaudio · 28th June 2007, 07:28 PM

I just ordered some SANYO bjt (2SC1209/2SA2911) from www.electronix.com. I got two different pinout for the same model of transistor, one is E, C, B (left to right) which is exactly the same as datasheet, the other is B,C,E.

Could anybody give some advice? Many thanks

Jan Dupont · 29th June 2007, 05:03 AM

I have had the same experience with different makes of MPSA42/92 transistors

My conclusion was that the one with "wrong" pinout was counterfeit (fakes) and I trached them......

alfaudio · 29th June 2007, 09:11 AM

Thank you very much for the reply.

It's such a pitty that we have so many fake transistors. Among 20Pcs that I bought, I got only 2 with the same pinout as datasheet. So it seems like I have to give all up,

Jan Dupont · 29th June 2007, 04:27 PM

Select your suppliers with great care..... I do !!!
If possible I buy directly from the source e.g. Onsemi etc.

28th June 2007, 07:28 PM	#1
alfaudio diyAudio Member Join Date: Sep 2004 Location: Montreal	Different pinout for the same BJT I just ordered some SANYO bjt (2SC1209/2SA2911) from www.electronix.com. I got two different pinout for the same model of transistor, one is E, C, B (left to right) which is exactly the same as datasheet, the other is B,C,E. Could anybody give some advice? Many thanks

29th June 2007, 05:03 AM	#2
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	I have had the same experience with different makes of MPSA42/92 transistors My conclusion was that the one with "wrong" pinout was counterfeit (fakes) and I trached them...... __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

29th June 2007, 04:27 PM	#4
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	Select your suppliers with great care..... I do !!! If possible I buy directly from the source e.g. Onsemi etc. __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

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29th June 2007, 09:11 AM	#3
alfaudio diyAudio Member Join Date: Sep 2004 Location: Montreal	Thank you very much for the reply. It's such a pitty that we have so many fake transistors. Among 20Pcs that I bought, I got only 2 with the same pinout as datasheet. So it seems like I have to give all up,

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