2N3773 Transistor: 2N3773, Circuit Diagram, Equivalent

2N3773 Symbol

2N3773 Footprint

The 2n3773 is a bipolar transistor with an NPN power base that is primarily used in disk head positioners, high-power audio, and other linear applications.

Because of its strong switching capability, this power transistor is also used in power-switching circuits like relays, DC-DC converters, and solenoid drivers.

The emitter, base, and collector terminals make up the majority of the 2n3773.

It has a high DC current gain and a low saturation voltage, and it is properly described for linear operation.

• High Safe Operating Area (100% Tested) 150 W @ 100 V 

• Completely Characterized for Linear Operation 

• High DC Current Gain and Low Saturation Voltage hFE = 15 (Min) @ 8.0 A, 4.0 V VCE(sat) = 1.4 V (Max) @ IC = 8.0 A, IB = 0.8 A 

• For Low Distortion Complementary Designs 

• This is a Pb−Free Device

• High power audio and Linear Applications

• High-performance switching and amplification purpose

The equivalent for 2N3773:

• 2N3000

• 2N3009

• 2N3010

• 2N3011

• 2N3012

• 2N3013

This NPN transistor is a bipolar current-controlled device, as opposed to a unipolar voltage-controlled device like a JFET.
The collector voltage exceeds the base voltage, which is positive in relation to the emitter.
The total of the base and collector currents is the emitter current.
This NPN transistor can be used with three configurations i.e common emitter configuration, common base configuration, and common collector configuration.
Because it has the requisite voltage and power gain for the amplification process, the common-emitter arrangement is primarily employed for amplification. The circuit diagram for 2N3773 is shown below.

2N3773 Circuit Diagram

The size and doping concentration of the collector and emitter terminals varies. The emitter has a high doping level, while the collector has a low doping level.

The forward current gain of a transistor is an essential aspect in determining its features. It's an amplification factor, which means it's a measure of how much current is amplified. It's called Beta, and it's a ratio between collector current and base current that's denoted by. The beta value ranges from 20 to 1000, with 200 being the most common. It has no unit because it is a ratio of two currents.

Another key aspect is current gain, which is indicated by and represents a ratio between collector and emitter current. The alpha value varies from 0.95 to 0.99. The majority of the time, its values are regarded as one.

STMicroelectronics 2N3773 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics 2N3773.

2N3773 Package Dimensions

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