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2N3055 NPN Power Transistor 60V 15A TO-3 (Original)

2N3055 NPN Power Transistor, 60V, 15A, TO-3 package, original, ideal for power amplification, switching, and high-current applications.

65.00 EGP

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Availability: In Stock
SKU:3496300087297

2N3055 NPN Power Transistor – High-Power, High-Performance Solution for Efficient Amplification and Switching

Features:
  • High Voltage Rating: Capable of handling up to 60V, making it ideal for high-voltage applications.
  • High Current Handling: Designed to deliver up to 15A of continuous collector current.
  • TO-3 Package: Offers superior heat dissipation, making it suitable for power applications.
  • Fast Switching: Provides efficient switching performance for various electronic circuits.
  • Robust Construction: Built for reliability in demanding power systems and amplifiers.
  • Wide Temperature Range: Works in temperatures ranging from -65°C to 200°C, providing flexibility in different environments.
Specifications:
  • Type: NPN Power Transistor
  • Voltage Rating: 60V
  • Current Rating: 15A (Continuous)
  • Power Dissipation: 115W (max)
  • Package Type: TO-3 (Metal Can)
  • Gain (hFE): 20 to 70 (at Ic = 4A, Vce = 10V)
  • Max Junction Temperature: 200°C
  • Transition Frequency (ft): 2MHz
  • Collector-Emitter Saturation Voltage (Vce_sat): 2V at 8A
  • Thermal Resistance: 1.1°C/W (junction to case)
2N3055 Pin Configuration

Like any other transistor 2N3055 has three pins namely EMITTER, BASE, and COLLECTOR. The pin configuration of 2N3055 is given below.

Pin NumberPin NameDescription
1Base (B)Normally used as the trigger to turn ON  the transistor
2Emitter (E)Normally connected to GROUND
TAB or CASECollector (C)Normally connected to LOAD
How to use the 2N3055 Transistor

As mentioned earlier the 2N3055 can be used for any NPN transistor applications but for understanding the functioning of the device let us consider a simple application circuit as shown below. Here we are going to use 2N3055 as a simple switching device to drive a motor and is in a common emitter configuration.

2N3055 Transistor circuit

As shown in the circuit, we are using a motor as the load, and the gate signal for turning ON the transistor is provided by a 5V source with a button being the triggering device. The trigger source and power source must share a common ground for the circuit to work. The 100Ω resistor is provided for limiting the current through the base.

Under initial conditions, the button will be open and no current flows through the base of the transistor. With no base current, the transistor acts as an open circuit and the entire supply voltage V1 will appear across it.

When the button is pressed at a certain time, the voltage V2 forms a closed loop with the base-emitter of the transistor as can be seen in the circuit diagram. With this closed loop a current flows through the base of the transistor and with the base current flow the transistor gets turned ON. Having the transistor acting as a short circuit in the ON state there will be a collector current that flows through the motor making it rotate. This motor will keep rotating until there is be base current.

After a certain time when the button is released the base current becomes zero and the transistor gets turned OFF. With the transistor going to a high resistance state in OFF mode, the collector current also becomes zero bringing the motor to a stop.

The way of controlling the power motor via a simple push button realizes the use of 2N3055 as a switching device and in the same way, we can use 2N3055 in other transistor circuits.

Applications
  • Power switching circuits
  • Amplifier circuits
  • PWM applications
  • Regulator circuits
  • Switch mode power supply
  • Signal Amplifiers
2N3055 Datasheet
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