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Transistor Type Npn

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24 Threads found on Transistor Type Npn
by calling it N channel do you mean its basically a IGBT equivalent of a npn bipolar transistor, except that instead of a gate that conducts it has a isolated mosfet like gate(whatever the IGBT inner structure was) ?
You'll also get differences between npn or PNP types because each type has different area and bulk resistance. A transistor temperature sensor can't be expected to have 0.5 K accuracy without calibration.
Hello. I'm having difficulties deducing which addition of what type of transistor is the best option for me while enabling a variable linear regulator to use its max 50mA output to be used as a max 5A output. Here are two examples I know of, the npn darlington is the one I went with first and have it on a prototype in (...)
At work on the circuit boards these use these types of transistors , they use transistors are a SWITCH 2N2484 2N3700 2N3440 2N6287 2N4093 2N5566 2N5116 2N3251 2N2222 2N2904 My question is why do they use different type transistors , when the transistor is used as a SWITCH? (...)
Can anyone knows 1558B npn transistor datasheet?
hi. i want simulate a oscillator circuit with NEC2sc3358 transistor in ADS,but i don't have nonlinear model (parasitic internal capacitances and inductances) of it.can anyone help me?it has a datasheet in internet that only have voltage and current characteristics...:-( or what transistor work likely NEC 2sc3358?
This is an RF amplifier transistor. Following is the short datasheet of the same. You can use any Silicone RF (npn) transistor in its place. 77183 PN5179 or 2N5179 are the same type of transistor.
I'm not sure, but I think those are sensors that use a Bipolar junction transistor... Probably they trigger a logic signal... I think the sensor sensing part should be connected to the base o a transistor npn or PNP... And they are probably used as normal transistors [table="
Your IC shows no ground connection. Don't know if it is implied. In any case the bias current goes into the npn transistor, then that current needs to have a path to ground. This is chancey, seeing the components being in the emitter leg. Consider putting the converter assembly in the collector leg. Or you might substitute a PNP type instead.
EDIT: To make the story short: When I use a transistor to open and close a switch, I can't just leave the collector hanging, right? And I shouldn't ground it nor the emittor, right? What I need is a big resistor between emittor and collector, which is short circuited when the base gets high. Am I onto it here? BACKGROUND I've s
as i would need to apply current to pnp transistor's base even if the motor is off There would be no power consumption in off state. You only need an additional low power npn transistor to switch the base current to the PNP transistor.
I am working on a project that consists of two separate circuits. On one side is a DC fan powered by a 9V battery. On the other side is an igniter that is powered by 1.5v. What I need to happen is for the fan to run only when the igniter is receiving 1.5v. After some research it appears a transistor may be the best way to do this. Howe
The basic filter design is near to a 2nd order butterworth filter, but by combining high- and low-pass to operate with a single buffer amplifier, the filter characteristic will be sligtly modified. The transistor type doesn't matter much, the circuit can work with any AF silicon npn.
Hi, I am looking for some IC which can work as high side switch with maximum supply voltage of 12V. I need the gate to control by digital signals. I can use a P-type FET along with a pull up resistor at gate and npn transistor from gate to ground, but wondering if some dedicated chips is availalalbe in market having all the features in (...)
Shouldn´t T1 be a npn and not PNP transistor as posted?
There's no BC558 npn transistor. BC558 is always a PNP type. That's why you can't find it. An npn type would be for example BC548.
You may try the opposite type of transistor you are using now. Mean if you are usiing npn type, youmay change it to PNP and vice versa. It may help suggesting you something more if you post your present schematic here. Good luck
hey can anyone tell me that can this transistor be replaced in the ckt and if it can be then by which component and how will the circuit then work immediate reply is requested. Im pasting the link which is :
Hi, Have a look at these posts * by t
you can use the concept that the Base Emitter terminal act as a diode and hence there is gonna be a large resistance in reverse bias hence you can use the polarity applied between the base and emitter terminal using the leads of the multimeter to identify whether base is P type or N type and hence guess the type of transistor