Where do I get the KTA1023 and KTC1027? I keep running into these buggers and NOBODY supplies them. Are these chinese no-name wonders?
digikey doesnt have them, newark doesnt have them, nobody has them. any ideas? even octopart is coming up empty.
MCMhas the 1023, but not the 1027.
digikey doesnt have them, newark doesnt have them, nobody has them. any ideas? even octopart is coming up empty.
MCMhas the 1023, but not the 1027.
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I found ST's STX93003 and STX3003 pair. they handle a bit more, and are designed for high speed switching, and digikey has them.
Would these work?
Would these work?
What's the application?
The BD139/140 work for power supply drivers.
The KSA1220A and KSC2690A are good for audio drivers in non-class D amps and can sometimes be used in class D amps.
For other applications, there will be different requirements.
The ones you listed probably won't work for all applications. The HFE is VERY low.
There are 4 basic parameters for transistors that you have to look at and all can't be at the upper end of the range. At least one has to be low. The parameters are current, voltage, speed (ability to switch efficiently at high frequencies) and gain (HFE). Here, the gain is low.
The BD139/140 work for power supply drivers.
The KSA1220A and KSC2690A are good for audio drivers in non-class D amps and can sometimes be used in class D amps.
For other applications, there will be different requirements.
The ones you listed probably won't work for all applications. The HFE is VERY low.
There are 4 basic parameters for transistors that you have to look at and all can't be at the upper end of the range. At least one has to be low. The parameters are current, voltage, speed (ability to switch efficiently at high frequencies) and gain (HFE). Here, the gain is low.
yes its the pro. didnt know there was a difference?
Those you listed are TO-126? they arnt the same package as the 1027. Does this matter?
Those you listed are TO-126? they arnt the same package as the 1027. Does this matter?
The pin configuration is the same. The package is larger but there should be enough room for them.
I don't know if there is a pro/non-pro. The photos I had that I used for reference were labeled for the pro.
I don't know if there is a pro/non-pro. The photos I had that I used for reference were labeled for the pro.
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