​how to detect a photosensitive transistor?

how to detect a photosensitive transistor?

the pin of the pin identifies the pin arrangement of the photosensitive transistor as shown in Figure 6-8,the foot near the pin or the longer one is the emitter E,and the far or shorter foot of the foot is the collector C.In addition,for Darlington type photosensitive transistor,the side of the package is round collector C.

the detection of the dark resistance will cover the light window of the photosensitive transistor with black paper,and the multimeter is placed in the RX1K block.The red and black pens are connected to the photosensitive transistor,a pin,and the pointer should not swing. If swinging,it shows that the light sensing transistor is leaking.

the detection of the bright resistance multimeter still uses the RX1k2 gear,the red pen is connected to the emitter E,the black pen is connected to the collector C,and the light window is directed toward a light source (natural light,incandescent lamp,etc),and the multimeter pointer should be turned right to a few thousand European places.The greater the deflection,the higher the sensitivity.If the pointer swing is small,it shows low sensitivity or damage.

what is a magneton?

Magnetic sensitive transistors are the same as magneto - polar transistors.Figure 6-9 shows the symbol and shape of the magnettransistor.Figure 6-9A is a circuit symbol.Figure 6-9b shows the outline diagram of 3CCM type magneto transistor.Figure 6-9c shows the outline diagram of 4CCM type magneto transistor.Figure 6-10 shows the volt ampere characteristic diagram of the magneto transistor.Figure 6-11 is a magnetic sensitive transistor application circuit.The detection method of magnetorheological transistor is the same as that of magneto diode.Tables 6-4 and 6-5 are the parameters of 3CCM and 4CCM type magneto transistor.