5 thoughts on “Question of triode”

  1. This is just a result of different classification standards, as shown below;
    a. According to the material score:

    PNP C. According to functional division:
    The switch tube, power tube, Darlingon tube, optical tube, etc.. D.
    e. According to the operating frequency: low -frequency tube, high -frequency tube, ultra -frequency tube F. According to the structural process: alloy tube, plane tube method as follows: 1; find out the basis to allocate the multimeter on the R × 100 or R × 1K file Essence The red pen is exposed to a certain tube, and the other two tube feet are connected with a black table pen. At the same time, the tube of the red table pen is the basis, and the type of the triode is PNP type; if the above method is used to measure the high resistance value of tens to hundreds of thousands of euros, the red table pen will be used. The tube of the contact is the base, and the type of the triode is NPN type. 2. After judging the emitting pole and the collector, one of the following methods can be used to discriminate the collector and launch pole. (1) Dial the multimeter on the R × 1 gear. Use your hand to pinch the base with the other tube (be careful not to let the electrode directly bump). , Black Watch Pen connects the other tube, pay attention to observe the amplitude of the multimeter pointer to the right. Then adjust the two tube feet and repeat the measurement steps. Compare the amplitude of the surface needle to the right in the two measured in the two measurements, and find out a large swing range. For the PNP triode, the black table pens are connected to the tube with the base pole, repeated the above experiments, and find out a large range of the table needle. At this time The launch pole.

  2. To92 packaging, NPN small power triode, mainly used for high -frequency release. A magnifying bandwidth of 700MHz ~ 1.1GHz.
    The parameters are: vcbo
    collector-base
    voltage
    30
    v
    vceo
    Collector-Emitter
    15
    v
    15
    v
    vebo
    emitter-base
    voltage
    5
    v r
    collector
    50
    ma r
    collector r
    Power

    400
    mw
    tj
    junction

    150 n ° C
    torage nstorage n r r

    -55
    ~
    150
    ° C
    amplified multiple hfe
    :
    hfe: (d)
    28
    ~
    45
    (e) 39
    ~
    60
    (f) 54
    ~ n80
    (g) 72
    ~
    108
    (h) 97
    ~
    146
    (i) 132
    ~ n198
    H331 is the magnification of the H gear, 331 is a survival number or a factory code.

  3. According to the different production process, it is divided into alloy tubes and plane pipe
    does not need to distinguish
    . The function is the same

  4. It can achieve
    The triode has a large -current exile effect and is the core component of the electronic circuit.
    The crystal triode (hereinafter referred to as the triode) is divided into two types of materials: pipe tube and silicon tube. The essence is that the transistor can control the large variable volume of the setting electrode current with a small amount of base current. This is the most basic and important feature of the triode. According to the potential of the electrodes of each electrode when working, the working status of the triode can be judged.
    Therefore, in the maintenance process, electronic maintenance personnel often use multiple meters to measure the voltage of each foot of the triode, thereby judging the working conditions and working status of the triode.
    Turn left to the left | Right to the right
    The expansion data
    The triode is to make two PN knots close to one semiconductor substrate. The middle part is the base area, and the parts on both sides are the launch area and the collector area. There are two types of PNP and NPN in arrangement. The packaging forms of the triode are commonly used in metal packaging and plastic packaging. Essence
    The material score: silicon tube, pipe tube, structure division: npn, PNP. According to functional divisions: switch tube, power tube, Darlington tube, optical tube, etc., according to power: small power tube, medium power tube, high power tube.
    The basic amplifier circuit is the most basic structure in the amplifier circuit and is the basic unit that constitutes a complex amplifier circuit. It uses bipolar semiconductor triode input current to control the characteristics of the output current, or field effects of the semiconductor triode input voltage control output current, to realize the signal amplification.

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