Overview
The BD437TG is a medium-power NPN epitaxial silicon transistor manufactured by ON Semiconductor. This transistor is designed for use in medium power linear and switching applications. It is part of a series that includes complementary types such as the BD438 and BD442. The BD437TG is available in a TO-225-3 package and is Pb-Free and RoHS compliant, making it suitable for a wide range of modern electronic designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Collector-Base Voltage (VCBO) | 45 | V |
| Collector-Emitter Voltage (VCES) | 45 | V |
| Collector-Emitter Voltage (VCEO) | 45 | V |
| Emitter-Base Voltage (VEBO) | 5 | V |
| Collector Current (DC) (IC) | 4 | A |
| Collector Current (Pulse) (ICP) | 7 | A |
| Base Current (IB) | 1 | A |
| Collector Dissipation (PC) | 36 | W |
| Junction Temperature (TJ) | 150 | °C |
| Storage Temperature (TSTG) | -65 to 150 | °C |
| Transition Frequency (ft) | 3 | MHz |
| Forward Current Transfer Ratio (hFE) Min | 85 | |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.8 | V |
| Base-Emitter ON Voltage (VBE(on)) | 1.1 | V |
Key Features
- Medium power linear and switching applications
- Pb-Free and RoHS compliant packages
- Complementary types: BD438 and BD442
- High collector current capability up to 4 A (DC) and 7 A (pulse)
- High collector dissipation of 36 W
- Low collector-emitter saturation voltage (VCE(sat)) of 0.8 V
- High forward current transfer ratio (hFE) with a minimum of 85
Applications
- Medium power linear amplifiers
- Switching circuits and power supplies
- Automotive and industrial control systems
- Audio amplifiers and other high-current applications
Q & A
- What is the maximum collector current of the BD437TG transistor?
The maximum collector current (DC) is 4 A, and the maximum collector current (pulse) is 7 A.
- What is the collector-emitter voltage rating of the BD437TG?
The collector-emitter voltage (VCEO) and collector-emitter voltage (VCES) are both rated at 45 V.
- What is the junction temperature range of the BD437TG?
The junction temperature (TJ) range is up to 150 °C.
- Is the BD437TG transistor Pb-Free and RoHS compliant?
- What are the complementary types of the BD437TG transistor?
The complementary types are BD438 and BD442.
- What is the transition frequency (ft) of the BD437TG transistor?
The transition frequency (ft) is 3 MHz.
- What is the collector dissipation (PC) of the BD437TG transistor?
The collector dissipation (PC) is 36 W.
- What is the base-emitter ON voltage (VBE(on)) of the BD437TG transistor?
The base-emitter ON voltage (VBE(on)) is 1.1 V.
- What is the storage temperature range of the BD437TG transistor?
The storage temperature (TSTG) range is -65 to 150 °C.
- What package type is the BD437TG transistor available in?
The BD437TG transistor is available in a TO-225-3 package.
