

BD139 NPN Medium Power Transistor – CDIL Make
Original price was: ₹10.00.₹5.90Current price is: ₹5.90.
• BD139 NPN medium-power transistor
• Maximum voltage: 80 V
• Maximum collector current: 1.5 A
• Power dissipation: 12.5 W
• TO-126 through-hole package
• Suitable for audio amplifier and driver stages
• Ideal for high-power audio and home theater systems
BD139 NPN Medium-Power Transistor
The BD139 is an NPN medium-power transistor designed for audio amplifier and driver stage applications, suitable for high-power audio and general-purpose circuits.
Configuration:
NPN bipolar junction transistor
Silicon construction
Electrical Characteristics:
Maximum working voltage: 80 V
Maximum collector current: 1.5 A
Power dissipation: 12.5 W
Package:
TO-126 through-hole package
Construction:
Designed for PCB mounting with heatsink support
Suitable for medium-power applications
Configuration Notes:
Optimized for audio amplification and driver stages
Suitable for moderate current and power handling
Requires proper thermal management for reliable operation
Intended Use:
Audio amplifier circuits
Driver stages in power amplifiers
Home theater systems
General-purpose medium-power applications





