Description:
The BD139 is a widely used NPN medium-power transistor suitable for general-purpose switching and amplification applications. It offers excellent voltage and current handling capabilities, making it a popular choice in audio amplifiers, power regulators, and driver stages.
Collector-Base Voltage (VCBO): 80V – supports high voltage operations.
Collector-Emitter Voltage (VCEO): 80V – ideal for medium power load switching.
Emitter-Base Voltage (VEBO): 5V – compatible with most control circuits.
Collector Current (IC): 1.5A – suitable for moderate current applications.
Junction Temperature (Tj): 150°C – reliable under high thermal stress.
Storage Temperature Range (Tstg): -65°C to +150°C – ensures safe long-term storage.
Thermal Resistance, Junction to Ambient (RθJA): 200°C/W – efficient thermal performance in compact designs.
Power Amplifiers: Used in the output stages of Class AB audio amplifiers.
Voltage Regulators: For discrete voltage regulation and power supply circuits.
Relay Drivers: Efficient for switching moderate loads.
Motor Control: Suitable for low-power motor control applications.
General Purpose Switching: Ideal for use in automation and control systems.
5x BD139 NPN Transistors
5x Heatsinks (for enhanced thermal management)
5x Screws (for mounting if applicable)
Disclaimer: Product specifications, features, and design may change over time due to product updates or improvements. Images are for illustration purposes only. Brand and color may vary depending on stock availability.
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