Voltage Rating (Vce): 140V

Collector Current (Ic): 12A

Power Dissipation (Pd): 100W

Package Type: TO-3P

Gain (hFE): 40 – 320 (Typical Range)

Applications: Audio Amplifiers, Power Switching Circuits, Motor Control, Voltage Regulators

High Efficiency and Durability

Reliable Performance in High Power Applications

Voltage Rating (Vce): 100V

Collector Current (Ic): 6A

Power Dissipation (Pd): 65W

Package Type: TO-220

Gain (hFE): 15 (Minimum)

Applications: Power Amplifiers, Switching Circuits, Audio Amplifiers, Motor Control

High Reliability and Efficiency

Easy Mounting with Standard TO-220 Package

Type: NPN Transistor (BD139)

Maximum Collector Current (Ic): 1.5A

Maximum Collector-Emitter Voltage (Vce): 80V

Power Dissipation: 12.5W (with proper heat sinking)

High Gain: Ideal for power amplification applications.

TO-126 Package: Ensures efficient heat dissipation.

Applications: Audio amplification, power switching, motor control, and general-purpose electronics

Type: PNP Transistor (BC557)

Maximum Collector Current (Ic): 100mA

Maximum Collector-Emitter Voltage (Vce): 45V

Power Dissipation: 500mW

Low Noise Output: Suitable for audio amplification.

TO-92 Package: Compact and easy to solder on PCBs.

Applications: Amplification, switching, signal processing, and general-purpose electronics.