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

2N3773 260W Audio amplifier Board | Bluetooth Amplifier

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:

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.