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Old 8th December 2009, 12:56 AM   #1
dacen is offline dacen  Norway
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Default Rohm SMD transistors

Any idea where I can get hold of 2SC3722K and complementary 2SA1455K Rohm SMD transistors ?
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Old 10th December 2009, 12:51 PM   #2
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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.
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Old 10th December 2009, 05:35 PM   #3
dacen is offline dacen  Norway
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Thank you very much. Very useful link !!
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Old 13th December 2009, 11:28 PM   #4
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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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