C2001 TRANSISTOR DATASHEET PDF

It is off the chart, it is a bad sign for this situation. Transistor Catalog Thanks, any help appreciated! The emitter of an NPN transistor is connected to — or towards — the negative line. What could cause transistor to overheat? Adding schematic to show what I mean: Thanks for that, but just want to clarify where do I put the resistor? You already know where the base pin should go.

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My previous, sort-of related question is here: Hence a load at its emitter or collector can cause it to have a negative impedance at its base. I do not say your circuit is drawing mA, peaks could be higher or lower. It depends on your batch. There are huge differences: Can you clarify position of additional 10R resistor?

Transistor Catalog Post as a guest Name. Suitable replacement for 2SC transistor? The additional resistor dampens this oscillation.

Vce would be much higher than 1. What could cause transistor to overheat? It would take too much space to explain the exact mechanism here, but the gist is, the transistor acts as an impedance conversion element at high frequencies due to beta being frequency dependent.

Thanks, any help appreciated! Sign up or log in Sign up using Google. If not, you have to take out a good oscilloscope and look at the waveforms. Attila Kinali 1, 1 9. Seeing that your circuit has no feedback resistor anywhere on the 2SC, I would suggest to try adding a 10R resistor in the base of the 2SC resp BC after the 22R resistor that goes to the feedback path and see whether that improves the situation. Is it possible that there is another problem which caused your transistor to fail and which makes datashdet new transistor hot?

Sign up using Facebook. But it will be lower, say it is mA. C Datasheet catalog Hi there Chupacabras, when I replace it with a good C the whole circuit works just fine. Home Questions Tags Users Unanswered.

It is off the chart, it is a bad sign for this situation. This is being used in a flyback circuit, which switches at approx ummm kHz or so. What type of voltage booster circuit is this? I have a circuit in which the C aka 2SC transistor failed after many years. But you can see that in some situations there are differences between BC and 2SC Base current is not a problem, it is limited by R to 4.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Thanks for that, but just want to clarify where do I put the resistor? Hi, Attila, thanks so much for prompt reply. This would severely limit the lifetime of an already stressed component. Another relevant difference could be in hFE.

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C2001 TRANSISTOR DATASHEET PDF

By using our site, you acknowledge that you have read and understand datashret Cookie PolicyPrivacy Policyand our Terms of Service. Post as a guest Name. Transistor Catalog The collector of a PNP transistor is connected to — or towards — datawheet negative line. Hi, Attila, thanks so much for prompt reply.

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If not, you have to take out a good oscilloscope and look at the waveforms. The collector of a PNP transistor is connected to — or towards — the negative line. When you can light the LED with a moist fingertip — the transistor is connected correctly. And its emitter is connected to — or towards — the positive line. Sign up using Email and Password.

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You already know where the base pin should go. And use your wet fingertip to join the collector to the base. You can still use these two circuits to identify the polarity of your transistor — and its pin configuration. Thanks for that, but just want to clarify where do I put the resistor? It is off the chart, it is a bad sign for this situation. If the LED glows — even dimly — the collector and emitter are connected the wrong way round. The collector of a PNP transistor is connected to — or towards — the negative line.

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2SC2001 Datasheet, Equivalent, Cross Reference Search

Dukazahn Sign up using Facebook. So, transistor could overheat by high Vce or Ic. Seeing that your circuit has no feedback resistor anywhere on the 2SC, I would suggest to try adding a 10R resistor in the base of the 2SC resp BC after the 22R resistor that goes to the feedback path and see whether that improves the situation. There are huge differences: This is being used in a flyback circuit, which switches at approx ummm kHz or so. Use trial and error to position hransistor other two pins. There is an element of trial and error involved.

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