Transistor B688 PNP 10A 120V
19,97 EGP
Transistor B688 PNP 10A 120V
Description:Transistor B688 PNP 10A 120V
The B688 Transistor is a high-power PNP silicon transistor engineered for audio amplification, switching, and power regulation applications. Designed for use in push-pull complementary circuits, the B688 Transistor delivers excellent performance when paired with its NPN counterpart, such as the D718 transistor, making it ideal for high-fidelity audio amplifiers and power control systems.
Constructed using epitaxial planar technology, the B688 Transistor provides high current handling capability (up to 10A) and supports a collector-emitter voltage (Vce) of 120V, ensuring dependable operation in both medium- and high-power circuits. Its low collector-emitter saturation voltage improves efficiency, while its excellent linearity and thermal stability guarantee distortion-free sound reproduction and stable operation.
Additionally, the B688 Transistor features a TO-3P package, which offers excellent heat dissipation and mechanical durability, enabling reliable use in high-load environments such as amplifiers, inverters, and industrial control systems. With its fast switching characteristics and wide frequency response, it is also suitable for various audio, control, and DC power switching applications.
Key Features:
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PNP Power Transistor: Optimized for high-power amplification and switching.
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Collector-Emitter Voltage (Vce): 120V maximum.
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Collector Current (Ic): Up to 10A continuous operation.
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Low Saturation Voltage: Ensures high efficiency and reduced heat generation.
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High Power Dissipation: Allows stable operation under demanding conditions.
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TO-3P Package: Provides robust mechanical support and effective heat management.
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Complementary Pair: Matches with D718 NPN Transistor for push-pull amplifier circuits.
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High Gain Stability: Maintains consistent performance across temperature variations.
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Excellent Linearity: Produces low distortion in audio and signal amplification systems.
Applications:
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High-fidelity (Hi-Fi) audio power amplifiers
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Power supply and voltage regulator circuits
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Industrial motor and control driver systems
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DC-DC and AC-DC converter designs
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Inverter and UPS systems
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Educational and experimental electronics
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Switching and amplifier circuits in home and professional audio equipment
Electrical Characteristics (Typical Values):
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | Vceo | 120 | V |
| Collector Current | Ic | 10 | A |
| DC Current Gain | hFE | 40–160 | – |
| Power Dissipation | Ptot | 100 | W |
| Saturation Voltage | Vce(sat) | 1.5 | V |
| Transition Frequency | fT | 10 | MHz |
| Operating Temperature | Tj | -65 to +150 | °C |
Advantages:
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High current and voltage handling for superior power performance.
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Low distortion and noise, ideal for audio output stages.
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Thermally stable and durable, ensuring long-term operation.
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Excellent gain linearity, resulting in accurate signal reproduction.
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Fast switching capability, improving circuit efficiency and responsiveness.
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Reliable TO-3P case, providing optimal heat dissipation.
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Perfect for complementary configurations, especially with the D718 transistor.
Summary:
The B688 Transistor is a robust, high-power PNP transistor designed for audio amplification, power switching, and industrial applications. With a 10A collector current and 120V voltage rating, it provides exceptional performance for amplifiers, regulators, and inverter circuits.
Thanks to its epitaxial planar design, the B688 Transistor ensures low distortion, excellent gain consistency, and fast switching response. Moreover, its TO-3P metal-backed package guarantees superior thermal conductivity and mechanical reliability, making it suitable for continuous, high-demand operations.
Whether used in professional sound systems, DC power regulation, or industrial electronics, the B688 Transistor offers efficiency, durability, and performance, making it a trusted choice among professionals and hobbyists alike.


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