First, transistor 9012
9012 is a very common transistor, in the radio and various amplification circuit often see it, the application is very wide, it is PNP type small power transistor.
1 PNP9012 Transistor
1.1 90,123 Pole Tube (TO-92 package) pin Diagram1. Emitter 2, Base electrode 3, collector
1.2 90,123 Pole Tube (SOT-23 package) pin Diagram1, Base electrode 2, emitter 3, collector
1.3 ParametersCollector-Emitter voltage -30vCollector-Base voltage -40vEmitter -Base voltage -5vCollector Current 0.5ADissipation Power 0.625WJunction temperature 150 ℃Special frequency 150MH min .2.3 Magnification: d64-91 e78-112 f96-135 g122-166 h144-220 i190-300
Two, 90,133 Pole tube 9013 is an NPN type small power transistor. Transistor, one of the basic semiconductor components, with current amplification, is the core components of electronic circuits. Transistor is made on a semiconductor substrate two a very close to the PN Junction, two PN junction of the whole semiconductor into three parts, the middle part is the base area, the two sides are the launch area and the collector area. Transistors are arranged in the form of PNP and NPN two kinds. s9013 NPN Transistor main uses: as audio amplification and radio 1W push-pull output and switches.
2 NPN9013 Transistor2.1 Model Comparison
s9014,s9013,s9015,s9012,s9018 SeriesCrystal Small power transistor, the display text plane toward itself, from left to right in turn E emitter B base C collector; for small and medium power plastic transistor according to the plan to make its plane facing itself, three pin down, then from left to right, E B c,s8050,8550,c2078 is the same as this. This is indicated by the following pin diagram (PIN diagram): triode pin diagram90,133 Pole TubeE b C At present, there are many kinds of domestic transistor, the arrangement of the pin is not the same, in the use of the transistor is not sure the pin arrangement, must be measured to determine the correct position of each pin (the following is useful multimeter measurement transistor three poles method), or to find the transistor manual, Clear the characteristics of the transistor and the corresponding technical parameters and information. Non-9014,9013 Series Transistor pin Recognition Method: (a) determine the base. Measuring the positive and reverse resistance values between each of the two poles in the three electrodes of a tube with a multimeter Rx100 or rx1k block. When one electrode is connected with the first one, and the second is in contact with the other two electrodes, the electrode that is connected to the first pen is the base B. At this point, pay attention to the polarity of the universal table pen, if the red table is connected to the base B. When the black form pen is connected to the other poles, the measured resistance is small, then the measured tube is a PNP transistor; if the black form pen is connected to the base B, the Red pen contacts the other poles respectively, the measured resistance is smaller, then the transistor is an NPN type tube such as 9013,9014,9018. (b) Determination of transistor collector C and emitter E. (in the case of PNP transistors) The multimeter is placed in the Rx100 or rx1k block, the Red pen base B, with the black pen to contact the other two pins, the measured two resistance value will be a larger, a smaller. In a single measurement with a small resistance, the black pen takes over the foot as the collector, and in the case of a larger resistance, the black pen takes over the foot as the emitter. D do not disassemble the transistor to determine its good or bad method. In the practical application, the small power transistor more direct welding on the printed circuit board, due to the installation density of components, disassembly is troublesome, so in the detection often by using a multimeter DC voltage, to measure the voltage value of each pin measured pipe, to infer whether the work is normal, and then judge the good or bad transistor. such as 9013, 90,141 NPN with a multimeter to detect their pin, Black Watch pen to a pole, with a red pen to connect the other poles, two poles have 5 k resistance, the black pen is connected to the B pole. At this time with black two pens to connect the other poles, with the tip of the tongue and add (in fact, you can first add wet finger and then with your fingers to touch, anyway is not sanitary) black pen to the pole and B pole, the table indicates that the small resistance of the Black Watch is the C pole. (The above is measured by the pointer table, the digital table is a red pen digital multimeter inside the positive and negative level is the opposite of the table.) ）
2.2 Pin ParametersParameters: Structural NPN collector-Emitter voltage 25V collector-Base voltage 45V emitter-Base voltage 0.7V collector Current IC Max 0.5A dissipation power 0.625W operating temperature -55℃~ +150℃ characteristic frequency 150MHz magnification d64-91 e78-122 F 96-135 g122-166 h144-220 i190-300 main purpose amplifier circuit.
2.3 The difference between 9013 and 9014
These two tubes are now commonly used NPN tubes, the same pin arrangement, but the parameters are different. 9013:bvceo=25v,pcm=625mw,icm=500ma. 9014:bvceo=40v,pcm=400mw,icm=150ma. 9013 power is larger, but the pressure value is not 9014 high.
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9012,9013 Transistor Summary
