Transistor BD246 PNP 15A 45V
The Transistor BD246 is a powerful PNP transistor specifically designed for high-current and medium-voltage applications, making it an essential component in power amplifiers, voltage regulators, and switching circuits. Known for its robust construction and dependable electrical performance, this transistor ensures reliable operation under demanding conditions, making it a top choice for engineers and electronic enthusiasts seeking efficiency and durability.
Key Features
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Type: PNP Silicon Power Transistor
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Collector Current (Ic): 15A continuous
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Collector-Emitter Voltage (Vce): 45V
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Collector-Base Voltage (Vcb): 60V
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Emitter-Base Voltage (Veb): 5V
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DC Current Gain (hFE): 25–100 (depending on current and temperature)
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Package Type: TO-3 or TO-218 metal case for superior heat dissipation
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Power Dissipation (Pc): Up to 90W at 25°C case temperature
Main Advantages
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High collector current capability up to 15A, ideal for heavy-load applications.
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Excellent thermal stability ensuring consistent performance across a wide temperature range.
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Low collector-emitter saturation voltage, providing efficient power switching and minimal energy loss.
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Suitable for audio output stages, ensuring low distortion and clear, powerful sound reproduction.
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Reliable complementary pairing with NPN transistors such as BD245 for push-pull amplifier configurations.
Applications
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Audio Power Amplifiers: Commonly used in Class AB amplifier stages to provide strong, distortion-free output.
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DC Motor Drivers: Handles high starting currents without overheating or performance drop.
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Voltage Regulators: Provides stable voltage regulation in industrial and consumer power supplies.
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Inverter Circuits: Works effectively in high-power inverter stages requiring efficient switching.
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Battery Chargers: Supports medium-voltage, high-current control with excellent stability.
Electrical Characteristics (Typical Values at 25°C)
| Parameter | Symbol | Test Condition | Value |
|---|---|---|---|
| Collector-Emitter Voltage | Vceo | Ic = 0 | 45V |
| Collector Current | Ic | Continuous | 15A |
| DC Current Gain | hFE | Vce = 2V, Ic = 4A | 25–100 |
| Transition Frequency | fT | Vce = 5V, Ic = 0.5A | 3 MHz |
| Collector Dissipation | Pc | Tc = 25°C | 90W |
| Junction Temperature | Tj | — | 150°C max |
Datasheet Summary
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Model: BD246
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Polarity: PNP
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Collector-Emitter Voltage (Vce): 45V
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Collector Current (Ic): 15A
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Power Dissipation: 90W
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Frequency Response: 3 MHz
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Complementary Pair: BD245 (NPN Transistor)
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Package: TO-3 or TO-218 metal can for enhanced thermal handling
Conclusion
The Transistor BD246 stands out as a high-performance PNP transistor built to handle demanding power applications with ease. Its combination of high current capacity, strong thermal endurance, and low power loss make it perfect for both audio amplification and power control circuits. Whether used in professional amplifier designs or industrial motor systems, the Transistor BD246 PNP 15A 45V guarantees reliable operation, long service life, and consistent electrical stability — making it a cornerstone in modern power electronics.

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