BC Rev. A BC NPN Darlington Transistor. • This device is designed for applications requiring . This datasheet contains the design specifications for. BC 2. Motorola Small–Signal Transistors, FETs and Diodes Device Data. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted). BC datasheet, BC pdf, BC data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, NPN Darlington Transistor.

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PHPirates on Jul 13, Thanks Tom, nice find, only one page further Expected result There should flow current to the controller enable when the Arduino puts 5V on the transistor, and not so otherwise. Possible problem points Datsheet thought about: We also replaced the transistor just in case it was broken, and tested some other crucial connections, although not all.

BC517 – BC517 NPN Darlington Transistor

Oh, hang on a second. I just bought some PNP transistors and made a high side switch now, using a circuit for example from Stackexchange.

Sorry for the bumping, but I just measured some things. Test code Datasheeh sure there’s nothing wrong with that because I tested the output with a multimeter, 4.

So since I want to switch the ground, I need to intercept the connection somewhere right? If it doesn’t provide its own power you have to provide at least 12V externally and high-side switch it. MarkT on Jul 13, Bc5517 try to switch the 12V, switch the GND and you are all set.


BC Datasheet pdf – NPN Darlington Transistor – Fairchild Semiconductor

Everything runs on smoke, let the smoke out, it stops running But now the motor doesn’t do anything So I’d need to figure out a 14V power supply Transistor The first time I connected the transistor without the base resistor, and I don’t think I’ve blown it but who knows Is that the way to go?

Now looking at the second picture, and there I can switch the connection to ground.

Is it opto isolated? Project Would someone be interested why, I’m trying to control the solar panels at home to get them always at an optimal angle.

If its isolated and it provides its own power, you can very simply use an NPN to switch it. Use fricking code tags!!!! NEW Library to make fading leds a piece of cake https: Where is the datasheet for this drive?

BC517 Datasheet, Equivalent, Cross Reference Search

Android app included, hooray for ethernet shields. Base resistor I calculated the 4K7 value with help from datsaheet post and otherswhich led me to believe that with a 5K resistor I’d get a base current of 1mA, which with a gain of I checked datashfet datasheet on this would mean it would be able to saturate collector currents above mA, which is fine here.


MarkT Brattain Member Posts: Q1 is PNP transistor Tom So 20 indeed is a positive supply voltage pin, as it’s labeled Vcc. I use supply with internal control voltage I think, so the first image. The circuits look similar, although they use an extra diode because of the dc motor datasneet the motor is on the other side of the transistor, which I think shouldn’t matter.

Problem driving a 12V/20mA frequency inverter with BC transistor

You’ll have to find out whether the digital section is opto-isolated with a multimeter. Hi, This is what you are looking for. Circuit Of course I’ve googled around a lot, and found a lot of examples to control a dc motor with a transistor like this.

TomGeorge Design and Repair of industrial control systems. Actual result Unfortunately the motor always starts when I connect the transistor, even if the base is connected to the Arduino ground. When the Arduino pin is low, I measure around 14 volts across both transistors, which is fine.