C945 TRANSISTOR DATASHEET PDF

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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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Sign up dataaheet Email and Password. 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.

See here page one for LVceo and some other relevant terms. All right, so just to settle LVceo – 50V min.

c TRANSISTOR equivalent datasheet & applicatoin notes – Datasheet Archive

This is always low, around 5V. Pawel Veselov 1 5. And what’s with the P73C part? Thank you for all your help, support, and explanations: But, the only things I see on this transistor again, I don’t know what is it, reallyare: Dattasheet the button is pushed, the voltage on the controller leg drops a volt or so, and the “out” leg starts showing some for lights.

C Datasheet(PDF) – List of Unclassifed Manufacturers

Pawel – Vebo – is the reverse base voltage, negative with respect to the emitter. It very much looks like this: Or I don’t understand what “LVceo: Catasheet using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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Umm, you don’t think 2SC is a little high voltage for battery operated? I believe the transistor for the speaker circuit just broke IMO, sitting an hour in rain would do it. It’s really not much, 8 buttons, trxnsistor push one, the lights go on, and dataheet little melody plays. On the other hand, they say Vebo is 5V max You apply the 3V via a resistor which takes care of the voltage difference. There is a transistor or I think it is for each circuit.

(PDF) C945 Datasheet download

Dormant, controller leg has the same voltage that is coming from the battery, and the “out” leg has nothing on it. Sign up or log in Sign up using Google. In most applications not relevant. Renan 4, 2 21 I was probing both the transistors to see what’s going on when a toy is “activated”.

Email Required, but never shown. Some of the answers I’ve got tell me this is 2SC, which is then, according to http: C P73C Ask Question.

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. LVceo means – the minimal collector-emitter voltage to cause a break down is 50V, right?

Nearly all transistors that are labeled transsistor to the Japanese standard JIS lack the leading “2S”. If so, and I were to transistir a replacement from, say RadioShack, how would I find one that would work? Home Questions Tags Users Unanswered. There is absolutely no markings on this thing, and it has three legs and black solid body. I’m trying to fix this little electronic toy. I’m sorry, this is confusing: Sign up using Facebook.

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And also, how do I tell that it would open when the base-emitter voltage drops, not when it will be applied?

C945 Transistor

The way datasheft broke, as it’s there is no sound. It looks a lot like a 2SCwhose TO92 packaging matches the image you posted. 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.

Now, I really don’t know much about this, but really wanna fix that toy: Then the spec for 2SC says: 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. C the first line, and P73C on the second line. 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.

There is a single controller, splitting to two circuits, one for diode lights, and another one to a speaker. Post as a guest Name. You need to do some basic reading on transistor parameters.