- How do transistors work?
- How do I choose the right transistor?
- Which transistor is best?
- What is difference between Transistor and Mosfet?
- How do you find the equivalent of a transistor?
- How do I find Mosfet?
- What is a Mosfet transistor used for?
- How is Mosfet equivalent calculated?
- Can IGBT replace Mosfet?
- What can replace a transistor?
- Can I use any transistor?
- How can I buy a transistor?
- Can we replace NPN transistor with PNP?
- Can I replace mosfet with transistor?
How do transistors work?
A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon.
By turning a small input current into a large output current, the transistor acts like an amplifier.
But it also acts like a switch at the same time..
How do I choose the right transistor?
Choosing a Suitable PNP or NPN Transistor SwitchThe transistor’s maximum collector current must be greater than the load current.The transistor’s maximum current gain must be at least 5 times the load current divided by the maximum output current from the IC.Choose a transistor which meets the requirements and making a note of its properties.More items…•Mar 13, 2012
Which transistor is best?
Best Transistors: BJTs#1 NPN – 2N3904. You can find most often NPN Transistors in low-side switch circuits. … #2 PNP – 2N3906. For high-side switch circuits, you need a PNP style BJT. … #3 Power – TIP120. … #4 N-Channel (Logic Level) – FQP30N06L.Apr 21, 2014
What is difference between Transistor and Mosfet?
The Bipolar Junction Transistor (BJT) is a current-driven device (in contrast, MOSFET is voltage-driven) that is widely used as an amplifier, oscillator, or switch, amongst other things.
How do you find the equivalent of a transistor?
Step by step instructions:Choose a transistor of the same polarity: The first major selection criterion is whether the transistor is PNP or NPN.Select a replacement transistor of the same material: Most transistors are either silicon or germanium.More items…
How do I find Mosfet?
1) Hold the MosFet by the case or the tab but don’t touch the metal parts of the test probes with any of the other MosFet’s terminals until needed. 2) First, touch the meter positive lead onto the MosFet’s ‘Gate’. 3) Now move the positive probe to the ‘Drain’. You should get a ‘low’ reading.
What is a Mosfet transistor used for?
MOSFET, in short, is a metal oxide semiconductor field-effect transistor used to switch or amplify voltages in circuits. Being part of the field-effect transistor family, it is a current-controlled device that is constructed with 3 terminals; Source.
How is Mosfet equivalent calculated?
How to find the substitute for MOSFETFind out the full name of the transistor by its label. … Study the MOSFET transistor connection layout for determining its operating mode (key in switching circuits, impulse device, linear stabilizer, etc.).Find the datasheet with the description of the defective transistor.More items…
Can IGBT replace Mosfet?
Due to the higher usable current density of IGBTs, it can usually handle two to three times more current than a typical MOSFET it replaces. This means that a single IGBT device can replace multiple MOSFETs in parallel operation or any of the super-large single power MOSFETs that are available today.
What can replace a transistor?
Relays: Normally closed relays are all you need to make any logic gate. Normally open relays are also useful. Mag-amps: Magnetic amplifiers could be used to make logic gates similarly to transistor-transistor logic.
Can I use any transistor?
So yes transistors are interchangeable, if the type (npn/pnp) and required specs match. … If the current through a transistor was only 10mA and they have a part that can tolerate 1A, well, that’s a bit much, and you can find a part that is more suited to what the circuit it.
How can I buy a transistor?
Choosing a transistor and base resistor for a digital IC outputChoose the right type of transistor, NPN or PNP. … Find out the supply voltage(s) and load properties. … Work out the transistor properties required. … Work out a value for the base resistor R. … Check if you need a protection diode.
Can we replace NPN transistor with PNP?
Generally, the PNP transistor can replace NPN transistors in most electronic circuits, the only difference is the polarities of the voltages, and the directions of the current flow. PNP transistors can also be used as switching devices and an example of a PNP transistor switch is shown below.
Can I replace mosfet with transistor?
Remove the base resistor from the circuit because we don’t typically need it anymore with a MOSFET. Connect the gate of the N-MOSFET directly to the activation voltage source. Keep the positive supply connected to one of the load terminals, and connect the other terminal of the load to the drain of the MOSFET.