What is C945 P331?
C945 P331 NPN Transistor is a general purpose NPN transistor used in wide variety of commercial and educational electronic circuits. c945 transistor can drive is around 150mA or 0.15A that is enough to operate many devices in a circuit for example LEDs, Relays, ICs, transistors and other parts of a circuit.
What is 2SC1815?
DESCRIPTION: The CENTRAL SEMICONDUCTOR 2SC1815 Series are silicon NPN transistors, manufactured by the epitaxial planar process, designed for general purpose amplifier applications.
How does a C945 transistor work?
C945 is usually used in electronic circuits where there is a need for a high-speed transistor and a low current. C-945 has three semiconductor regions named emitter, base, and collector respectively. When we apply voltage at C-945’s base, the current starts to flow between collector and emitter.
Can we use BC547 instead of C1815?
C1815 vs BC547? The BC547 is an NPN transistor as the C1815 so it can be the substitute of the C1815. The main difference between the two lies in the maximum collector current.
How do you test a power transistor with a multimeter?
Connect the base terminal of the transistor to the terminal marked positive (usually coloured red) on the multimeter. Connect the terminal marked negative or common (usually coloured black) to the collector and measure the resistance. It should read open circuit (there should be a deflection for a PNP transistor).
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.
Which transistor can we use instead of BC547?
BC547 vs 2N2222 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 do you know if a power 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.
Can I replace PNP with NPN?
Answer: NPN and PNP transistors are interchangeable if you remember one simple rule: A bipolar transistor is essentially two back-to-back diodes with the base being the common connection.