2SC transistor pinout, marking C Sometimes the “2S” prefix is not marked on the package – the 2SC transistor might be marked “C”. C datasheet, C pdf, C data sheet, datasheet, data sheet, pdf. C Datasheet PDF Download – 2SC, C data sheet.

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What could datawheet transistor to overheat? Adding schematic to show what I mean: How do you know that your transistor is the only problem in your circuit?

I have seen them referred to as ‘switching’ transistors somewhere, I don’t know what that specially means. Sign up using Email and Password. So, is there something ‘special’ about the C trannies?

(PDF) C2001 Datasheet download

daasheet Is it possible that there is another problem which caused your transistor to fail and which makes your new transistor hot? 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 datashret situation.

BC doesn’t seem suitable Ask Question. This is from BC datasheet: It depends on your batch. BC hFE from to Can you clarify position of additional 10R resistor?

There are huge differences: The BC got kind of warm, and didn’t work. The additional resistor dampens this oscillation.


I Googled about, and tried to replace it with a BC But you can see that in some situations there are differences between BC and 2SC Email Required, but never shown. Hi, Attila, thanks so much for prompt reply. But it will be lower, say it is mA. Vce would be much higher than 1.

(Datasheet) C pdf – MCC Features   omponents Ma 2SC (1-page)

So power dissipation would be mW, which is above maximum allowed power dissipation. Thanks, any help appreciated!

Sign up or log in Sign up using Google. It is off the chart, it is a bad sign for this situation.

It would take too much space to explain the exact mechanism here, but the gist is, the daatsheet acts as an impedance conversion element at high frequencies due to beta being frequency dependent. Attila Kinali 1, 1 9.

2SC Datasheet(PDF) – NEC

The switching transistor shouldn’t go into breakdown. Home Questions Tags Users Unanswered. Base current is not a problem, it is limited by R to 4.

Hence a load at its emitter or collector can cause it to have a negative impedance at its base. When I replace it with a BC, the circuit doesn’t work at all.

This would severely limit the lifetime of an already stressed component. Sign up using Facebook. So, transistor could overheat by high Vce or Ic. My previous, sort-of related question is here: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


Post as a guest Name. Suitable replacement for 2SC transistor? If not, you have to take out a good oscilloscope and look at the waveforms.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Now look in the datasheets to compare those two transistors what is the Vce for such current. Another relevant difference could be in hFE. Thanks for that, but just want to clarify where do I put the resistor? Chupacabras 3, 2 11 This is being used in a flyback circuit, which switches at approx ummm kHz or so.

This is your circuit: By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Well, it’s whether excessive base current, or excessive product of Ic x Vce. This is from 2SC datasheet: What type of voltage booster circuit is this?