What are the common transistors?

1. Plastic packaging high-power transistor

Plastic package high-power transistor output power is large, used to signal power amplification. Under normal circumstances, the larger the output power of the transistor, the larger the volume.

It has three pins, and there is a small radiating fin at the top, because the power is big, and the heat is easy, so it was necessary to place the heat sink.

2. Metal package high power transistor

Metal package high power transistor with a large size, the structure of the hat shape, the top of the hat is used to install the heat sink, the metal shell itself is a radiating part. Two holes are used to fix the transistor on the circuit board. This packaged transistor only has two pins, the base and the emitter, and the collector is the metal shell of the transistor.

PD55003-E:

3. Small power transistors for plastic packaging

Plastic encapsulated small power transistors are also the most widely used transistors in electronic circuits. There are many kinds of encapsulation, and there are many distributions of the three pins. Small power transistors are used in electronic circuits to play the role of amplifying the power of the amplified signal, for example, to amplify the signal voltage as a controller in a variety of control circuits.

4. Darlington transistor

Darlington transistor is also known as the composite tube of Darlington structure. The composite tube is made up of two transistors with different output power according to a certain wiring rule. There are four specific Darlington tubes and two resistors in the tube according to the two internal transistor modes. It is mainly used as power amplifying tube and power adjustment tube.

5. Transistor with damping

Transistor with damping is mainly used as the row output transistor in the line output circuit of TV set. It encapsulates the damping diode and resistor in the tube shell. Inside the transistor there is also a 252 small resistor between the base and emitter. The damping diode is set inside the line output, which reduces the lead resistance, improves the line scan linearity and reduces the line frequency interference. A resistor between the base and the emitter is adapted to the high output voltage of the output tube.

Allicdata Electronic specialize in the production of MOSFETs, IGBTs, JFETs, Bipolar (BJT) transistors,etc.

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