BC640 PNP Silicon Transistor: BC640, Datasheet, Equivalent

BC640 Symbol

BC640 Footprint

BC640 3D Model

BC640 is a bipolar junction transistor with a  PNP  junction that is mostly used for amplification and switching.

The emitter, base, and collector are the three pins that make up this circuit.

The base is the most important terminal in the transistor, as it is responsible for the entire response. The modest current change at the base terminal is utilized to control the enormous current flowing through the remaining terminals. The reason for this is that it's also known as a current-controlled device, as opposed to  FETs  (field-effect transistors), which are voltage-controlled.

BC640 has three layers, one of which is n-doped and the other two are p-doped.

In a  PNP transistor, current flows from the emitter to the collector, whereas in an NPN transistor, current flows from the collector to the emitter.

• Package-Type: TO-92

• Transistor Type:  PNP

• Max Collector Current(I_C): –500mA

• Max Collector-Emitter Voltage (V_CE): –80V

• Max Collector-Base Voltage (V_CB): –80V

• Max Emitter-Base Voltage (VEBO): –5V

• Max Collector Dissipation (Pc): 625 milliwatt

• Max Transition Frequency (fT): 100 MHz

• Minimum & Maximum DC Current Gain (h_FE): 40 – 160

• Max Storage & Operating temperature Should Be: -55 to +150 Centigrade

• Sensor and Detector Circuits

• Audio Amplifier Circuits

• Switching Loads under 500mA to 1000mA

• Darlington Pairs

• Radio Frequency Applications

The equivalent for BC640:

• BC618

• BC635

• BC636

• BC637

One of the most critical factors in ensuring a long service life for any component is to avoid using it to its maximum capacity. We usually recommend utilizing a component that is at least 20% below its maximum rating. If your transistor's collector current is 500mA or 1A (as indicated above), do not drive a load of more than 400mA, and if your transistor's collector current is 1A, do not drive a load of more than 800mA. The load voltage should always be less than 60V, and the transistor should be stored or used between -55 and +150 ℃.

ON Semiconductor BC640 technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor BC640.

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