small-signal (small-power) fast switching complementary transistors

Lola Luna · 17th June 2005, 04:45 PM

Hi,

for the use in switching amplifiers also highspeed analog stages I am searching for a complementary pair of bjt-transistors inclusive saber and/or spice models. The parameters should correspond to

UCE(min)=80V, IC(min)=500mA, P(min)=200mW, hfe(min)=100, ft>300MHz, t,on/t,off=<50ns, case: 318-08/SOT23 or similar.

Thanks

Mr Evil · 17th June 2005, 05:07 PM

I can't think of anything that matches all of those parameters at once. If I wanted high speed complementary BJTs I might think of BFT93/BFR93, but they don't have high hfe or Ic. Higher gain transistors tend to be slower than 300MHz.

Lola Luna · 19th June 2005, 08:10 AM

To my regret, they have only 15 Volts ...

For Example:
UCE=60V, IC=600mA, P=500mW, hfe=100, ft=300MHz, t,on/t,off=50ns
This are (approximately) the characteristics of the 2N2905A, only 20...40V more UCE, an adequate case and he would be suitable for some of my applications.
Nowadays, there are no higher developed types than an goldy of the swinging sixties?

tiefbassuebertr · 8th April 2010, 08:51 PM

check out this types from Sanyo
SANYO: 2SA1407E
and this thread:
High Voltage BjT's for Pre-driver stages of High Power Amplifier - Overview

17th June 2005, 04:45 PM	#1
Lola Luna diyAudio Member Join Date: Jun 2005 Location: berlin	small-signal (small-power) fast switching complementary transistors Hi, for the use in switching amplifiers also highspeed analog stages I am searching for a complementary pair of bjt-transistors inclusive saber and/or spice models. The parameters should correspond to UCE(min)=80V, IC(min)=500mA, P(min)=200mW, hfe(min)=100, ft>300MHz, t,on/t,off=<50ns, case: 318-08/SOT23 or similar. Thanks

17th June 2005, 05:07 PM	#2
Mr Evil diyAudio Member Join Date: Aug 2004 Location: Behind you	I can't think of anything that matches all of those parameters at once. If I wanted high speed complementary BJTs I might think of BFT93/BFR93, but they don't have high hfe or Ic. Higher gain transistors tend to be slower than 300MHz. __________________ http://mrevil.pwp.blueyonder.co.uk/

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19th June 2005, 08:10 AM	#3
Lola Luna diyAudio Member Join Date: Jun 2005 Location: berlin	To my regret, they have only 15 Volts ... For Example: UCE=60V, IC=600mA, P=500mW, hfe=100, ft=300MHz, t,on/t,off=50ns This are (approximately) the characteristics of the 2N2905A, only 20...40V more UCE, an adequate case and he would be suitable for some of my applications. Nowadays, there are no higher developed types than an goldy of the swinging sixties?

8th April 2010, 08:51 PM	#4
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	check out this types from Sanyo SANYO: 2SA1407E and this thread: High Voltage BjT's for Pre-driver stages of High Power Amplifier - Overview

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