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Another relevant difference could be in hFE.

2SC2001-K Datasheet

I have short-term access to another C – putting that in the circuit works just fine, so I know the transistor is the issue. Is it possible that there is another problem which caused your transistor to fail and which makes your new transistor hot?

Hi, Attila, thanks so much for prompt reply. How do you know that your transistor is the only problem in your circuit? What type of voltage booster circuit is this?

2SC2001-L Datasheet

Well, it’s whether excessive base current, or excessive product of Ic x Vce. So, is there something ‘special’ about the C trannies? I have a circuit in which the C aka 2SC transistor failed after many years.

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Chupacabras 3, 2 11 This is your circuit: I have seen them referred to as ‘switching’ transistors somewhere, I don’t know what that specially means. I do not say your circuit is drawing mA, peaks could be higher or lower. I Googled about, and tried to replace it with a BC Hi there Chupacabras, when I replace it with a good C the whole circuit works just fine.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. It is off the chart, it is a bad sign for this situation. This would severely limit the lifetime of an already stressed component.

Post as a guest Name. Sign up using Facebook. Vce would be much higher than 1.

2SC Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

This is from 2SC datasheet: There are huge differences: This is being used in a flyback circuit, which switches at approx ummm kHz or so.

Thanks, any help appreciated! This is from BC datasheet: Sign up using Email and Password.

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But you can see that in some situations there are differences between BC and 2SC So power dissipation would be mW, which is above maximum allowed power dissipation. Base current is not a problem, it is limited by R to 4. Can you clarify position of additional 10R resistor? The additional resistor dampens this oscillation. What could cause transistor to overheat? Sign up or log in Sign up using Google. If not, you have to take out a good oscilloscope and look at the waveforms. BC hFE from to Suitable replacement for 2s2001 transistor?

2SCM Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

Hence a load at ddatasheet emitter or collector can cause it to have a negative impedance at its base. My previous, sort-of related question is here: Attila Kinali 1, 1 9. Home Questions Tags Users Unanswered.

Email Required, but never shown. BC doesn’t seem suitable Ask Question. It depends on your batch.

Last modified: June 2, 2020