What is the equivalent of a BC547 transistor?

BC547 Equivalents

The BC series, such as BC549 and BC639, are the finest recommendations for the BC547 transistor equivalent, followed by the 2N2222 transistor. BC636 replaces BC547, 2N2369, 2N3055, 2N3904, 2N3906, and 2SC5200 in the PNP.

How does a BC547 transistor work?

The BC547 is a NPN transistor meaning when power is applied to the base (control pin) it will flow from the collector to the emitter. Typically NPN transistors are used to “switch ground” on a device, meaning, they are placed after the load in a circuit.

What does C indicate in transistor BC547?

The BC547 transistor includes three pins which include the following. bc547-transistor-pin-configuration. Pin1 (Collector): This pin is denoted with symbol ‘C’ and the flow of current will be through the collector terminal. Pin2 (Base): This pin controls the transistor biasing.

What is 547b transistor?

The BC547B is a NPN Transistor, suitable for use in driver and output stages of audio amplifier, low noise input stages of tape recorders, Hi-Fi amplifiers and signal processing circuits of television receivers.

Can I replace BC547 with 2N2222?

Can we use BC547 instead of 2N2222? Yes, you can use, for switching just look for Ic(collector current) and Vceo(collector-emitter voltage) in the datasheet.

Can I use 2N2222 instead of BC547?

Yes I did… 2N2222 has a maximum permissable power dissipation of 250mW whereas BC547 can take 500mW. But the circuit is operating in 4-12mW range for Q1 transistor.

How do I test a BC547 transistor with a multimeter?

BC 547 is a NPN Transistor where the 2nd (middle terminal is base) is connected to Red (+Ve) test lead of multimeter. At all, Terminal 1 = Emitter, Terminal 2 = Base, and Terminal 3 = Collector (BC 547 NPN Transistor) because, the test result for 1-2 = 0.717 VDC and 2-3 = 0.711 VDC, i.e. 1-2 > 2-3.

Is BC 547 NPN or PNP?

NPN transistor
BC547 -> BC547 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. BC547 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor.

Why do we use BC547 transistor?

BC547 is usually used for current amplifier, quick switching and pulse-width modulation (PWM). Therefore, if you need to control the speed of a motor or actuator in some of your projects, you can simply use this transistor to achieve it.

Can I use bc547b instead of BC547?

just make sure the resistors are the right value to acount for the lowest gain you may have. The 547 is the non-graded version, whereas the A, B and C versions have been graded into specific hfe ranges. Basically any of them will work there.

Can I use 2N3904 instead of BC547?

Because the collector current of the 2N3904 is 200mA and the collector current of the BC547 is 100mA, you can replace the 2N3904 with BC547 if the load you’re driving is less than 100mA, but you can’t use BC547 if the load is greater than 100mA.

Which transistor can be used in place of 2N2222?

The 2N2907 is an equally popular PNP transistor complementary to the 2N2222.

What is the difference between 2N2222 and 2N2222A?

What are 2N2222 and 2N2222A Transistors? Both transistors are from the same family but the 2N2222A has higher Maximum absolute ratings than 2N2222. The Collector to Base, Emitter to Base, and Collector to Emitter voltage ratings of 2N2222 and 2N2222A are 60V, 30V, 5V, and 75V, 40V, 6V respectively.

How can you tell if a transistor is bad?

Connect the red probe in turn to each of the three leads. If the other two leads don’t give the same reading when touched by the black probe, the transistor is PNP and it is bad. Multimeter tests determine if a transistor is blown (open or shorted) and provide a rough estimate of the transistor’s ability to amplify.

How can you tell if a transistor is good or bad?

To test your transistor, first clamp the black probe of a multimeter to the transistor’s base. Then, touch the red probe to the emitter and read the display to see if the resistance is high or low. Next, move the red probe to the collector, and check that the reading is the same as it was before.

What is difference between NPN and PNP transistor?

PNP switches On by a low signal whereas NPN switches ON by a high signal. As we are aware that in PNP transistor, the P represents the polarity of the emitter terminal and N represents the polarity of the base terminal.

Can I use BC558 instead of BC557?

Yes. You can use BC557 in place of BC547. And similarly, you could use BC558 in place of BC557.

Is BC547 NPN or PNP?

How do I connect BC547?

Useful Steps

1. Place Transistor on a breadboard.
2. Connect Emitter to the ground of the battery.
3. Add LED & 330 Ohm Resistor to Collector of BC547.
4. Connect 1k Resistor and Switch to Base of transistor.
5. Power up the circuit with 9V Battery.

What is the difference between BC547 and 2N3904?

The collector current of 2N3904 is 200mA and BC547 is 100mA therefore if the load you are driving with the 2N3904 is under 100mA then you can replace it with BC547 but if the load is above 100mA then you can not use BC547 instead of 2N3904.

What is the difference between 2N3904 and 2N2222?

2N3904 can handle up to 200mA (milliamperes) of current flowing from the emitter to the collector terminal. A 2N2222 can handle up to 5 times that amount of current, as it can handle up to 1A (amps) of current flow from emitter to collector to power a load.

Is 2N2222A NPN or PNP?

NPN bipolar
The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications.

Can I use 2N2222A instead of 2N2222?

The 2N2222A is the “improved” version of the 2N2222. You should be able to substitute the former for the latter in any circuit (but not necessarily vice versa).

Can you bypass a transistor?

If you add base resistors to both transistors, there is no risk in bypassing the transistors in your diagram. You basically turn the transistor in a diode and you have to limit the base current / GPIO-pin current from your microcontroller as the base-emitter voltage will be about 0.7V.

What causes a transistor to fail?

When a diode or a transistor fails, one of two things usually happens: A junction (or junctions) go short circuit (its resistance becomes very low or zero). A junction (or junctions) go open circuit (its resistance becomes very high or infinity).