Overview
The BD139G is a general-purpose NPN silicon power transistor manufactured by ON Semiconductor. It is designed for use in audio output stages and other power switching circuits where medium power output and low-noise operation are desired. This transistor is part of a series that includes the BD135 and BD137, and it is complementary to the PNP types BD136, BD138, and BD140.
The BD139G features an integrated collector-emitter breakdown voltage of 80 volts and is capable of handling up to 1.5 amps of continuous collector current. It operates within a temperature range of -55°C to +150°C, making it suitable for a variety of applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 80 | V |
| Collector-Base Voltage | VCBO | 80 | V |
| Emitter-Base Voltage | VEBO | 5.0 | V |
| Collector Current | IC | 1.5 | A |
| Base Current | IB | 0.5 | A |
| Power Dissipation | PD | 12.5 | W |
| Operating Junction Temperature | TJ | -55 to +150 | °C |
| Transition Frequency | ft | 50 | MHz |
| DC Current Gain (hFE) | hFE | 40 (Min) @ IC = 0.15 A | |
| Package Type | TO-225 |
Key Features
- High current capability up to 1.5 A
- Low voltage operation with a maximum collector-emitter voltage of 80 V
- DC current gain (hFE) of 40 (Min) at IC = 0.15 A
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant
- Complementary to BD136, BD138, and BD140
- Operating temperature range of -55°C to +150°C
- Medium power dissipation of 12.5 W
Applications
The BD139G is designed for use in various applications, including:
- Audio amplifiers and drivers utilizing complementary or quasi-complementary circuits
- Driver stages in high-fidelity amplifiers and television circuits
- Medium power linear and switching applications
Q & A
- What is the maximum collector-emitter voltage of the BD139G transistor?
The maximum collector-emitter voltage (VCEO) of the BD139G transistor is 80 V.
- What is the maximum collector current of the BD139G transistor?
The maximum collector current (IC) of the BD139G transistor is 1.5 A.
- What is the operating temperature range of the BD139G transistor?
The operating temperature range of the BD139G transistor is -55°C to +150°C.
- What is the DC current gain (hFE) of the BD139G transistor?
The DC current gain (hFE) of the BD139G transistor is 40 (Min) at IC = 0.15 A.
- Is the BD139G transistor Pb-Free and RoHS Compliant?
Yes, the BD139G transistor is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
- What are the complementary PNP types for the BD139G transistor?
The complementary PNP types for the BD139G transistor are BD136, BD138, and BD140.
- What is the package type of the BD139G transistor?
The package type of the BD139G transistor is TO-225.
- What are the typical applications of the BD139G transistor?
The BD139G transistor is typically used in audio amplifiers, driver stages in high-fidelity amplifiers, and medium power linear and switching applications.
- What is the transition frequency (ft) of the BD139G transistor?
The transition frequency (ft) of the BD139G transistor is 50 MHz.
- What is the power dissipation of the BD139G transistor?
The power dissipation (PD) of the BD139G transistor is 12.5 W.
