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2N3773 Transistor | Equivalent | Amplifier Circuit | Datasheet NTE Electronics, Inc

The 2N3773 transistor is a versatile power transistor widely used in amplifier circuits, including audio amplifiers and power supplies. For those comparing 2N3055 vs 2N3773, this transistor offers unique performance characteristics suitable for high-power applications. Detailed information on the 2N3773 is available in the Reference manual, covering its pinout, circuit diagram, and complementary transistor options. Whether you're looking for a replacement, equivalent, or just need the transistor amplifier circuit, this component delivers reliable results in electronics projects.

Brands: NTE Electronics, Inc

Download: -

Package: TO-204AA, TO-3

Series: -

In Stock: 412

Transistor Type: NPN

Current-Collector(Ic)(Max): 16 A

Voltage-Collector Emitter Breakdown (Max): 140 V

Vce Saturation(Max)@IbIc: 1.4V @ 800mA, 8A

Price: inquiry

2N3773 Transistor Equivalent

2N3773 Introduction

The 2N3773 is a common NPN power transistor often used in high current, high power and amplification applications. Examples include switching power supplies, audio amplifiers, motor drives and industrial control equipment. Due to its high withstand voltage and high current that can be flowed, it is one of the very important devices in medium and high voltage high power circuits. With the development of the times, this product has also derived many replaceable products.

2N3773 Parameter Diagram:

Name	2N3773	3DD15D	2N3055	MJ15003
Polarity	NPN	NPN	NPN	NPN
VCEO	140-160V (Maximum 160 not recommended at 160)	350V	60V	150V
IC	16A	5A	15A	20A
PCM	150W	50W	115W	250W
Footprint	TO-3	TO-3	TO-3	TO-3
Applicable Scenarios	Inverters, power switches	Medium Voltage Switching Circuit	Universal Power Amplifier	Motor drive

3DD15D Picture

2N3055 Picture

MJ15003 Picture

Selection Precautions

Voltage matching: the maximum withstand voltage value of the alternative model must be greater than or equal to the maximum withstand voltage value of the previous device, otherwise it may breakdown.
Current and heat dissipation: We also need to consider the heat dissipation problem, such as some packages can be connected to an external metal heatsink so that the heat loss will become smaller efficiency will be improved; 3DD15D due to insufficient power, if forced to use may lead to overheating damage
Driver circuit adjustment: MJ15003 base drive current demand is high, need to reduce the base resistor value.