C1740 TRANSISTOR PDF

Part Number: C Function: A, 60V / NPN Plastic-Encapsulated Transistor. Package: TO Type. Manufacturers: SEMTECH. A simple example was to build a transistor based inverter for a If I use a ” switching” NPN transistor like a C, however, it doesn’t work. 2SC NPN silicon transistor. NPN, 50V, A, W.

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A simple example was to build a transistor based inverter for a project involving baud serial combination at 5v. I could do it with a quad NOR gate, but that is a 14 pin DIP package that needs 12 wires connected when you include tying unused inputs to ground.

That takes a lot of room on my breadboard and a lot of time to set up. I understand that a “real” CMOS inverter is a better choice for this application, but bear with me.

How to invert a digital signal. What is it about switching transistors that makes them unsuitable for a circuit like this? I thought switching transistors were tuned for very “snappy” response that tends to be either fully on or fully off. If so, note the pins red line – they are not the standard pin-out with base in the centre like the 2NA: By clicking “Post Your Answer”, you acknowledge that you have read our tramsistor terms of serviceprivacy policy and cookie policyand that trasistor continued use of the website is subject to these policies.

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Home Questions Tags Users Unanswered. Why won’t a switching transistor work in this circuit Ask Question. I’ve been working with an Arduino lately, and building various breadboard circuits.

2SCS Original Rohm Transistor C | eBay

I built an inverter based on this thread: How to invert a digital signal The circuit looks like this: Duncan C 1 10 Might be a silly question but did you check the pinout of the switching device?

I could not find datasheet for the C Are you sure that a it is an NPN transistior b with a sufficient B current amplification factor and c that you connected it correctly? Also, I would use a much lower resistor instead of k, maybe 10k. So is that a rule of thumb, make r2 10x the r1 value? Exactly 10x, or 10 or less? Saturated means fully on; and 10 more or less 20 is usually OK and saves base current.

Maybe it’s a 2SC Andy aka k 10 I don’t know for sure what these are. These are loose parts that I’ve collected in various electronics kits and projects through the years. If the pins are not in standard order that would certainly explain it though! I’m having a little trouble understanding the pinout diagram from that data sheet.

C Datasheet PDF – A , 60V NPN Transistor – Semtech

Is the flat side facing up in the red box above? So the leftmost pin is the emitter, the middle is the collector, and the rightmost pin is the base? The base and collector are reversed from the 2nA?

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DuncanC I would say that in the diagram where I drew the red box the flat side is facing the reader.

Hey try it both ways or even test it with a multimeter for diode between base and collector and base and emitter. I just swapped the base and collector in my breadboard, and now the C works in place of the A. Thank you very much. It’s maddening that the pinouts aren’t the same.

DIP Transistor 2SC1740 C1740 2SC1740S

Why can’t the industry standardize on one pinout convention for a given type of component transidtor package? Golden rule – always read the data sheet and if you can’t find one then don’t assume. Sign up or log in Sign up using Google.

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