Rohm SMD transistors

dacen · 7th December 2009, 11:56 PM

Any idea where I can get hold of 2SC3722K and complementary 2SA1455K Rohm SMD transistors ?

Kurt von Kubik · 10th December 2009, 11:51 AM

It seems as if they are obsolete, but try to look for a subtitution @ ROHMs website.
I think that replacement with general purpose transistors will do.
Anyways the ones you´ve mentioned are for low freq. low noise and high voltage.
here :Bipolar Transistors | Transistors | Discrete Semiconductors | ROHM CO., LTD. you should find what you need. Digikey holds at least some of the most common ROHM transistors.

dacen · 10th December 2009, 04:35 PM

Thank you very much. Very useful link !!

tiefbassuebertr · 13th December 2009, 10:28 PM

Here a little overview of pre driver and power solid state devices (transistors)
High Voltage BjT's for Pre-driver stages of High Power Amplifier - Overview
bipolar (bjt) transistor families for audio power output stages

7th December 2009, 11:56 PM	#1
dacen diyAudio Member Join Date: Jul 2006	Rohm SMD transistors Any idea where I can get hold of 2SC3722K and complementary 2SA1455K Rohm SMD transistors ?

10th December 2009, 11:51 AM	#2
Kurt von Kubik diyAudio Member Join Date: Feb 2009 Location: Viby, Denmark	It seems as if they are obsolete, but try to look for a subtitution @ ROHMs website. I think that replacement with general purpose transistors will do. Anyways the ones you´ve mentioned are for low freq. low noise and high voltage. here :Bipolar Transistors \| Transistors \| Discrete Semiconductors \| ROHM CO., LTD. you should find what you need. Digikey holds at least some of the most common ROHM transistors. __________________ Just do it

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10th December 2009, 04:35 PM	#3
dacen diyAudio Member Join Date: Jul 2006	Thank you very much. Very useful link !!

13th December 2009, 10:28 PM	#4
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	Here a little overview of pre driver and power solid state devices (transistors) High Voltage BjT's for Pre-driver stages of High Power Amplifier - Overview bipolar (bjt) transistor families for audio power output stages

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