How do I choose a transistor replacement?

How do I choose a transistor replacement?

Choose a transistor with a similar power dissipation : It is necessary to ensure that the replacement transistor can handle the power that it will dissipate within the circuit. Choosing a replacement transistor with a similar can style will often mean that both transistors have a similar power dissipation.

What is B and C in BC107?

B stands for Silicon and C means low frequency audio transistor. So BC107 is a low power audio frequency transistor that is made of Silicon.

What is the threshold voltage of BC107?

s: Transistor Polarity: N Channel ; Continuous Drain Current Id: 800mA ; Drain Source Voltage Vds: 60V ; On Resistance Rds(on): 2ohm ; Rds(on) Test Voltage Vgs: 10V ; Threshold Voltage Vgs Typ: 1.6V ; Power Dissipation Pd: 350mW ; Operating Temperature Range: -65°C to +150°C ; Transistor Case Style: SOT-23 ; No.

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.

Can I replace mosfet with transistor?

In general we can easily replace a BJT with a MOSFET, provided we take care of the relevant polarities. 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.

What is the symbol of PNP transistor?

The PNP Transistor is denoted by the letters PNP. In the diagram below, the symbol for a PNP transistor is depicted. In a PNP transistor, the current flows from the emitter to the collector, as shown by the inward arrow.

Which transistor is best for switching?

What is BC in BC548 transistor?

For instance, the BC prefix in the case of the BC548 indicates the semiconductor is made out of silicon and is intended for general, all-around use. By comparison, AC or AF indicates a germanium semiconductor, and BL indicates a silicon transistor intended for high power applications.

What is PNP transistor?

The PNP transistor is a type of transistor in which one n-type material is doped with two p-type materials. It is a device that is controlled by the current. Both the emitter and collector currents were controlled by the small amount of base current. Two crystal diodes are connected back-to-back in the PNP transistor.

What is threshold voltage of transistor?

The threshold voltage, commonly abbreviated as Vth, of a field-effect transistor (FET) is the minimum gate-to-source voltage VGS (th) that is needed to create a conducting path between the source and drain terminals. It is an important scaling factor to maintain power efficiency.

How do transistors amplify signals?

A transistor acts as an amplifier by raising the strength of a weak signal. The DC bias voltage applied to the emitter base junction, makes it remain in forward biased condition. This forward bias is maintained regardless of the polarity of the signal.

What are the different types of BC107 transistors?

BC107 BC107B Low noise general purpose audio amplifiers Description The BC107 and BC107B are silicon planar epitaxial NPN transistors in TO-18 metal case. They are suitable for use in driver stages, low noise input stages and signal processing circuits of television receivers. The PNP complementary types are BC177 and BC177B respectively.

What is the current gain of the bc177 transistor?

The BC177 transistor might have a current gain anywhere between 125 and 500. The gain of the BC177A will be in the range from 125 to 260, BC177B ranges from 240 to 500. The BC107 is a complementary NPN transistor for the BC177.

What’s the difference between a BC107 and a BC547?

Its max Vceo is 45V, its max current is only 100mA and its hFE is from 125 to 500 at 2mA. A BC547 has the same chip but in a modern epoxy case and its allowed thermal power is double the BC107. I have used 2N3904 little transistors to replace BC547 in circuits for many years. Its pins are in a different order than the European transistors.

What is the Max current of a BC107?

Those that understand binary and those that don’t. A BC107 was an old ordinary little transistor in a metal case. Its max Vceo is 45V, its max current is only 100mA and its hFE is from 125 to 500 at 2mA.