2N3055 transistor datasheet, Uses and Features

Complementary Silicon Power Transistors

15 AMPERE POWER TRANSISTORS COMPLEMENTARY SILICON 60 VOLTS, 115 WATTS

The 2N3055 is a popular NPN power transistor widely used in electronic circuits, particularly in power amplification and switching applications.

Complementary Silicon Power Transistor designed for general purpose switching and amplifier applications. The 2N3055 is a silicon Epitaxial-Base Planar NPN transistor mounted in Jedec TO-3 metal case. It is intended for power switching circuits, series and shunt regulators, output stages and high fidelity amplifiers. The maximum current capacity to output load is 15A. Total wattage 115 W power.

Features of the 2N3055 Transistor

• Medium power transistor
• Complementary NPN – PNP transistors
• Low collector-emitter saturation voltage
• Excellent safe operating area
• Maximum current allowed trough collector: 15A DC
• Maximum voltage across collector and emitter: 60V DC
• Maximum voltage across collector and base: 100V DC
• Maximum current allowed through base: 7A DC
• DC current gain (hFE) up to 70
• Maximum voltage across base and emitter: 7V DC
• Operating temperature range: -65ºC to +200ºC
• Total power dissipation: 115W

Transistor Type

NPN BJT: The 2N3055 is an NPN-type transistor, meaning it uses a positive voltage at the base relative to the emitter to turn on, allowing current to flow from the collector to the emitter.

The complementary PNP type is MJ2955.

2N3055 Transistor Pinout

2n3055 transistor uses

1. Audio Amplifiers:
   • The 2N3055 is commonly used in the output stages of audio power amplifiers due to its ability to handle high currents and dissipate significant power. It can drive loudspeakers and other audio devices requiring substantial power.
2. Power Supplies:
   • It is often used in regulated power supplies, particularly in the pass transistor stage, where it helps regulate the output voltage by dissipating excess power as heat. Its high current rating allows it to handle large loads.
3. Motor Control:
   • In motor control circuits, the 2N3055 can act as a switch or amplifier, controlling the power delivered to motors in applications such as robotics, industrial machinery, and automotive systems.
4. Switching Circuits:
   • Due to its ability to handle high currents, the 2N3055 is suitable for switching applications where it controls high-power loads like solenoids, lamps, and relays. It can be used in both linear (analog) and switching (digital) modes.
5. Inverters and Converters:
   • The transistor is also used in DC-AC inverters and DC-DC converters, where it helps convert electrical power between different forms and voltages. Its high power capacity is ideal for these demanding applications.
6. Voltage Regulators:
   • The 2N3055 is used in voltage regulator circuits, particularly in linear regulators, where it helps maintain a stable output voltage despite variations in the input voltage or load conditions.

 2n3055 transistor equivalent

TIP3055(15A), 2N3773(16A), MJ15015(15A), BDX18(16A), 2N6609(30A)

2N3055 transistor Datasheet PDF

Datasheet CDIL

Datasheet ST

Datasheet NELL

Datasheet TIGER