Overview
The BD437G is an NPN epitaxial silicon transistor produced by onsemi, formerly known as Fairchild Semiconductor. This transistor is designed for medium power linear and switching applications. It is part of the BD433/435/437 series, which offers a range of collector-base and collector-emitter voltage ratings, making it versatile for various electronic circuits.
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 |
| DC Current Gain (hFE) | 40 to 140 | - |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.2 to 0.6 | V |
| Base-Emitter ON Voltage (VBE(on)) | 1.1 to 1.2 | V |
Key Features
- Medium power linear and switching applications
- Complement to BD434, BD436, and BD438 respectively
- High collector current capability (up to 4 A DC and 7 A pulse)
- High collector dissipation (up to 36 W)
- Wide range of operating temperatures (-65°C to 150°C)
- Available in TO-126 package
Applications
The BD437G transistor is suitable for a variety of applications, including:
- Power amplifiers and switching circuits
- Motor control and driver circuits
- Audio amplifiers and other linear applications
- General-purpose switching and amplification in electronic devices
Q & A
- What is the maximum collector-base voltage of the BD437G transistor?
The maximum collector-base voltage (VCBO) of the BD437G transistor is 45 V. - What is the maximum collector current for the BD437G?
The maximum collector current (IC) for the BD437G is 4 A (DC) and 7 A (pulse). - What is the junction temperature range for the BD437G?
The junction temperature range for the BD437G is up to 150°C. - What package type is the BD437G available in?
The BD437G is available in the TO-126 package. - What are the typical applications of the BD437G transistor?
The BD437G is typically used in medium power linear and switching applications, including power amplifiers, motor control circuits, and general-purpose switching. - What is the collector dissipation of the BD437G?
The collector dissipation (PC) of the BD437G is up to 36 W. - What is the base-emitter ON voltage for the BD437G?
The base-emitter ON voltage (VBE(on)) for the BD437G is between 1.1 V and 1.2 V. - What is the DC current gain range for the BD437G?
The DC current gain (hFE) for the BD437G ranges from 40 to 140. - Can the BD437G be used in high-temperature environments?
Yes, the BD437G can operate in temperatures up to 150°C. - Is the BD437G suitable for life support systems or medical devices?
No, the BD437G is not designed or authorized for use in life support systems or any FDA Class 3 medical devices.
