C945 TRANSISTOR DATASHEET PDF

WEITRON. C NPN Transistors. Lead(Pb)-Free. Pb . TO 1. 2. 3. 1. EMITTER. 2. COLLECTOR. 3. BASE. 1/4. Page 1 of 5. Tel: ()-TAITRON () () Fax: ()- TAITFAX () () SMD Transistor (NPN). SMD Transistor. C NPN Transistors. ELECTRICAL CHARACTERISTICS (TA=25 C unless otherwise noted) (Countinued) Characteristics Symbol Min Typ Max Unit.

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There is absolutely no markings on this thing, and it has three legs and black solid body.

You apply the 3V via a resistor which takes care of the voltage difference. I’m sorry, this is confusing: Nearly all transistors that are labeled according to the Japanese standard JIS lack the leading “2S”. I was probing both the transistors to see what’s going on when a toy is “activated”.

C Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

And also, how do I tell that it would open when the base-emitter voltage drops, not when it will be applied? Pawel – Vebo – is the reverse base voltage, negative with respect to the emitter. I’m trying to fix this little electronic toy.

Dormant, controller leg has the same voltage that is coming from the battery, and the “out” trannsistor has nothing on it. Pawel Veselov 1 5. On the other hand, they say Vebo is 5V max 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.

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There is a dztasheet controller, splitting to two circuits, one for diode lights, and another one to a speaker. And what’s with the P73C part? Sign up using Email and Password.

In most applications xatasheet relevant. Email Required, but never shown. If so, and I were to order a replacement from, say RadioShack, how would I find one that would work? 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. When the button is pushed, the c45 on the controller leg drops a volt or so, and the “out” leg starts showing some for lights.

C945 Datasheet, Equivalent, Cross Reference Search

I was able to replace this transistor with 2N I should’ve been more careful picking the replacement that had the same order of pins, but hey, this was the cheapest one available. Renan 4, 2 21 C P73C Ask Question. Sign up or log in Sign up using Google. You need to do some basic reading on transistor parameters. Thank you for all your help, support, and explanations: Or I don’t understand what “LVceo: For each, one right leg is straight to the batteries, the second left leg is to the chip through a resistorand the third one middle is to the outlet from one it’s to the speaker and from another it’s to lights.

It’s really not much, 8 buttons, you push one, the lights go on, and a little melody plays. See here page one for LVceo and some other relevant terms. It looks a lot like a 2SCwhose TO92 packaging matches the image you posted. Umm, you don’t think 2SC is a little high voltage for battery operated? Now, I really don’t know much about this, but really wanna fix that toy: Home Questions Tags Users Unanswered.

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Sign up using Facebook. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Some of the answers I’ve got tell me this is 2SC, which is then, according to http: This is always low, around 5V. I believe the transistor for the speaker circuit just broke IMO, sitting an hour in trannsistor would do it.

But, the only things I see on this transistor again, I don’t know what is it, reallyare: All right, so just to settle LVceo – 50V min. It very much looks like this: LVceo means – the minimal collector-emitter voltage to cause a break down datasheet 50V, right?

The way it broke, as it’s there is no sound. The out leg that goes to the speaker doesn’t ever show any voltage, yet its leg that goes to the controller shows different voltage drops I assume that’s the controller “playing” music. Then the spec for 2SC says: There is a transistor or I think it is for each circuit.

C the first line, and P73C on the second line. Post as a guest Name.