Helpful tips

Can I use BC548 instead of BC547?

Can I use BC548 instead of BC547?

This group of NPN transistors share many specifications and characteristic curves, but differ in voltage ratings – the BC546 and BC547 are essentially the same as the BC548 but selected with higher breakdown voltages, while the BC549 is a low noise version, and the BC550 is both high-voltage and low-noise.

What is bc547bp?

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.

What is the use of BC547 transistor?

BC547 Transistor Application 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.

What is BC557 transistor?

BC557 is a bipolar junction transistor with DC current gain 300. It falls under the category of PNP transistors where one N-doped layer stands between the two P-doped layers. The continuous collector current is 100mA means it can drive load under 100mA.

Which transistor can be used in place of 2N2222?

The 2N2907 is an equally popular PNP transistor complementary to the 2N2222. The 2N3904 is an NPN transistor that can only switch one-third the current of the 2N2222 but has otherwise similar characteristics.

What is the difference between 2N2222 and 2N2222A?

The following datasheet shows the difference between the two transistors: bytesonic.com/sonic/2N2222.pdf The major difference that I see is that the 2N2222A has higher voltages for the Vebo, Vcbo and Vceo values.

Is BC547 transistor NPN or PNP?

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.

How do you know if a transistor is working?

Hook the positive lead from the multimeter to the to the EMITTER (E) of the transistor. Hook the negative meter lead to the BASE (B) of the transistor. For an good NPN transistor, you should see “OL” (Over Limit). If you are testing PNP transistor, the meter should show a voltage drop between 0.45V and 0.9V.

How do you know if a transistor is NPN or PNP?

Connect the positive lead of the multimeter to the Base (B) of the transistor and connect the negative lead to the Emitter (E) of the transistor. If it is an NPN transistor then meter should show a voltage drop between 0.45V and 0.9V. If it is a PNP transistor, then it should display see “OL” (Over Limit).

What is difference between BC547 and BC557?

Advanced Member level 5. BC557 is PNP, BC547 is NPN to see what is this transistor reconstruct circuit from existing PCB on paper, then you will know. Look silk mask on top of PCB if something is written.

How do you turn on a PNP transistor?

To turn on the transistor you need to get the voltage on the base to be 0.7V lower than the emitter, which is 9V – 0.7V = 8.3V. For example, you can now make the LED turn on when it gets dark by using a photoresistor and a standard resistor set up as a voltage divider.

Can I use C945 instead of 2N2222?

Can I use a C945 transistor instead of 2N2222 (both are NPN)? – Quora. As far as specs are concerned the C945 has more gain, Hfe, than the 2N2222, but for most applications yes you could use C945 in place of the 2N2222. One issue though is C945 has different pin out than the 2N2222.

What kind of car is the Subaru Legacy?

Subaru Legacy (first generation) The first generation Subaru Legacy is a mid-size family car / wagon developed by Fuji Heavy Industries. The Legacy was an all new model, and was considered a notable departure from Subaru products in the past.

What’s the horsepower of a Subaru Legacy B4?

The B4 model was introduced for the third generation, and was a sedan-only model. The RSK featured the familiar DOHC, twin-turbo 2.0 litre engine rated 280 bhp (209 kW) ( (265 bhp (198 kW) for automatic with manual mode). This results in a 0–60 mph time of 5.2 seconds for the manual and 5.8 seconds for the automatic.

What’s the 0-60 mph time on a Subaru Legacy?

This results in a 0–60 mph time of 5.2 seconds for the manual and 5.8 seconds for the automatic. This engine was popular with Japanese buyers due to reduced tax liability based on Japanese vehicle size legislation; the car offered performance advantages over larger cars sold in Japan with bigger engines but with a smaller tax bill.

Can a right hand drive Subaru Legacy have a twin turbo?

The twin turbo can only be installed on right-hand drive vehicles because the turbo on the left side interferes with both the brake master cylinder and steering linkage, among other things. A minor performance problem with the twin turbo was a “turbo dead zone” before the second turbo would kick in around 4700–5200 rpm.