Overview
The BD139-10 is an NPN epitaxial planar transistor produced by STMicroelectronics. It is part of the BD135 to BD140 series, which includes complementary PNP types such as the BD136 and BD140. These transistors are designed for use in audio amplifiers and drivers, particularly in complementary or quasi-complementary circuits. They are mounted in the SOT-32 plastic package, making them suitable for a variety of general-purpose applications.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| VCBO | Collector-base voltage (IE = 0) | 80 | V |
| VCEO | Collector-emitter voltage (IB = 0) | 80 | V |
| VEBO | Emitter-base voltage (IC = 0) | 5 | V |
| IC | Collector current | 1.5 | A |
| ICM | Collector peak current | 3 | A |
| IB | Base current | 0.5 | A |
| PTOT | Total dissipation at Tc ≤ 25 °C | 12.5 | W |
| PTOT | Total dissipation at Tamb ≤ 25 °C | 1.25 | W |
| Tstg | Storage temperature | -65 to 150 | °C |
| Tj | Max. operating junction temperature | 150 | °C |
| Rthj-case | Thermal resistance junction-case | 10 | °C/W |
| Rthj-amb | Thermal resistance junction-ambient | 100 | °C/W |
| VCEO(sus) | Collector-emitter sustaining voltage (IB=0) | 80 | V |
| VCE(sat) | Collector-emitter saturation voltage | 0.5 | V |
| VBE | Base-emitter voltage | 1 | V |
| hFE | DC current gain | 25 to 250 |
Key Features
- Epitaxial planar transistor in SOT-32 plastic package
- Designed for audio amplifiers and drivers using complementary or quasi-complementary circuits
- High DC current gain (hFE) with pre-selected groups (e.g., 63 to 160 for BD139-10)
- High collector-emitter voltage (VCEO) of up to 80 V
- Collector current (IC) up to 1.5 A and peak current (ICM) up to 3 A
- Low collector-emitter saturation voltage (VCE(sat)) of 0.5 V
- ECOPACK® lead-free second level interconnect for environmental compliance
Applications
- Audio amplifiers
- Drivers in complementary or quasi-complementary circuits
- General-purpose applications requiring medium power linear and switching operations
Q & A
- What is the BD139-10 transistor used for? The BD139-10 is used in audio amplifiers and drivers, particularly in complementary or quasi-complementary circuits.
- What is the package type of the BD139-10? The BD139-10 is mounted in the SOT-32 plastic package.
- What is the maximum collector-emitter voltage (VCEO) of the BD139-10? The maximum VCEO is 80 V.
- What is the maximum collector current (IC) of the BD139-10? The maximum IC is 1.5 A.
- What is the thermal resistance junction-case (Rthj-case) of the BD139-10? The Rthj-case is 10 °C/W.
- Is the BD139-10 RoHS compliant? Yes, the BD139-10 is RoHS compliant with an ECOPACK1 grade.
- What is the operating temperature range of the BD139-10? The operating temperature range is from -65 °C to 150 °C.
- What is the maximum base current (IB) of the BD139-10? The maximum IB is 0.5 A.
- What is the collector-emitter saturation voltage (VCE(sat)) of the BD139-10? The VCE(sat) is 0.5 V.
- What are the DC current gain (hFE) groups for the BD139-10? The hFE groups range from 63 to 160 for the BD139-10.
