Overview
The BD243B-S is a complementary silicon plastic power transistor produced by Bourns Inc., although it is now obsolete and no longer manufactured. This transistor is part of the BD243 and BD244 series, which include both NPN (BD243B, BD243C) and PNP (BD244B, BD244C) types. The BD243B-S is specifically an NPN transistor designed for general-purpose amplifier and switching applications.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 80 | Vdc |
| Collector-Base Voltage | VCB | 80 | Vdc |
| Emitter-Base Voltage | VEB | 5.0 | Vdc |
| Collector Current - Continuous | IC | 6 | Adc |
| Collector Current - Peak | ICM | 10 | Adc |
| Base Current | IB | 2.0 | Adc |
| Total Device Dissipation @ TC = 25°C | PD | 65 | W |
| Derate above 25°C | 0.52 | W/°C | |
| Operating and Storage Junction Temperature Range | TJ, Tstg | −65 to +150 | °C |
| Thermal Resistance, Junction-to-Case | RJC | 1.92 | °C/W |
Key Features
- High Current Gain Bandwidth Product
- Pb-Free and RoHS Compliant
- Designed for general-purpose amplifier and switching applications
- High collector current capability up to 6 A continuous and 10 A peak
- Wide operating temperature range from −65°C to +150°C
Applications
The BD243B-S transistor is suitable for various applications including:
- General-purpose amplifiers
- Switching circuits
- Power management systems
- Automotive and industrial control systems
Q & A
- What is the collector-emitter voltage rating of the BD243B-S transistor?
The collector-emitter voltage rating is 80 Vdc. - What is the maximum continuous collector current for the BD243B-S?
The maximum continuous collector current is 6 Adc. - Is the BD243B-S Pb-Free and RoHS Compliant?
Yes, the BD243B-S is Pb-Free and RoHS Compliant. - What is the thermal resistance, junction-to-case for the BD243B-S?
The thermal resistance, junction-to-case is 1.92 °C/W. - What is the operating temperature range for the BD243B-S?
The operating temperature range is from −65°C to +150°C. - What are the typical applications of the BD243B-S transistor?
The typical applications include general-purpose amplifiers, switching circuits, power management systems, and automotive and industrial control systems. - Is the BD243B-S still in production?
No, the BD243B-S is obsolete and no longer manufactured. - What is the derating factor for power dissipation above 25°C?
The derating factor is 0.52 W/°C. - What is the maximum base current for the BD243B-S?
The maximum base current is 2.0 Adc. - What is the collector-emitter saturation voltage for the BD243B-S?
The collector-emitter saturation voltage is approximately 1.5 Vdc.
