Transistor TIP31 NPN 3A 100V
13,31 EGP
Transistor TIP31 NPN 3A 100V
Description:Transistor TIP31 NPN 3A 100V
The TIP31 Transistor is a high-performance NPN bipolar junction transistor (BJT) designed for medium power amplification and switching applications. Known for its versatility, reliability, and cost-effectiveness, the TIP31 Transistor is a popular choice among engineers, technicians, and hobbyists for various audio, control, and power circuit designs.
Built using epitaxial planar technology, the TIP31 Transistor offers low collector-emitter saturation voltage, high current handling, and excellent thermal stability. It supports a collector-emitter voltage (Vce) of up to 100V and a collector current (Ic) of up to 3A, providing a balance between performance and efficiency.
In addition, the TIP31 Transistor delivers excellent DC current gain (hFE) and fast switching characteristics, making it suitable for audio amplifiers, power regulation systems, relay drivers, and signal processing circuits. Furthermore, it is designed in a TO-220 package, allowing efficient heat dissipation and ensuring stable operation in high-load environments.
It can also be used in complementary push-pull configurations when paired with the TIP32 PNP Transistor, resulting in high-quality, low-distortion output for audio systems and amplifiers.
Key Features:
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NPN Power Transistor: Ideal for switching and amplification in medium-power circuits.
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Collector-Emitter Voltage (Vce): 100V for broad voltage compatibility.
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Collector Current (Ic): Supports up to 3A continuous current.
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High DC Gain (hFE): Provides stable amplification in linear and switching operations.
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Low Saturation Voltage: Minimizes power loss and enhances efficiency.
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Fast Switching Response: Suitable for PWM, inverter, and digital control circuits.
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TO-220 Package: Offers excellent heat dissipation and long operational life.
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Complementary Pair: Matches with TIP32 PNP Transistor for push-pull applications.
Applications:
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Audio amplifier and driver stages
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Power supply and voltage regulation systems
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Motor and relay control circuits
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Switching and inverter circuits
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Signal amplification and processing
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Industrial and automation projects
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Educational and prototype development
Electrical Characteristics (Typical Values):
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | Vceo | 100 | V |
| Collector Current | Ic | 3 | A |
| DC Current Gain | hFE | 15–75 | – |
| Power Dissipation | Ptot | 40 | W |
| Saturation Voltage | Vce(sat) | 1.2 | V |
| Transition Frequency | fT | 3 | MHz |
| Operating Temperature | Tj | -65 to +150 | °C |
Advantages:
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Excellent performance for medium-power amplification and switching.
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Reliable and thermally stable for continuous operation.
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Fast response time, ideal for control and digital systems.
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Low energy loss due to efficient switching behavior.
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High DC gain, providing accurate and consistent amplification.
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Durable TO-220 package, ensuring effective heat management.
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Widely compatible, suitable for both analog and digital circuits.
Summary:
The TIP31 Transistor is a robust and efficient NPN power transistor designed for medium-current, high-voltage applications. With its 3A collector current capacity and 100V voltage rating, it delivers reliable performance in audio amplifiers, control circuits, and switching systems.
Its epitaxial planar construction ensures excellent linearity, low distortion, and thermal stability, while the TO-220 package provides superior heat dissipation. When paired with the TIP32 Transistor, it forms a complementary configuration ideal for push-pull amplifiers and power control applications.
Overall, the TIP31 Transistor is a trusted and widely used component in both industrial and educational electronics, providing durability, efficiency, and versatility in every circuit.

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