2N4931-Transistor Overview
The 2N4931 is a high-performance PNP bipolar junction transistor designed for medium power amplification and switching applications. Featuring a maximum collector current of 1.0A and a collector-emitter voltage rating of 100V, this transistor delivers reliable operation under moderate power conditions while maintaining robust thermal stability. Its complementary NPN counterpart allows for efficient push-pull amplifier designs. Ideal for general purpose use in analog circuits, the device supports moderate gain with a DC current gain (hFE) range that ensures consistent amplification. Sourced from a reputable IC Manufacturer, the 2N4931 offers engineers a dependable solution for industrial and consumer electronic designs.
2N4931-Transistor Key Features
- High Collector-Emitter Voltage (100V): Enables operation in circuits requiring significant voltage handling capability without breakdown.
- Collector Current up to 1.0A: Supports medium power loads, making it suitable for switching and amplification in various electronic designs.
- Moderate DC Current Gain (hFE): Provides consistent amplification levels for analog signal processing and linear amplifier applications.
- Complementary Pair Availability: Matches with complementary NPN transistors for push-pull stages, improving efficiency in amplifier circuits.
2N4931-Transistor Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Emitter Voltage (Vceo) | 100 | V |
| Collector-Base Voltage (Vcbo) | 100 | V |
| Emitter-Base Voltage (Vebo) | 5 | V |
| Collector Current (Ic) | 1.0 | A |
| DC Current Gain (hFE) | 30 to 100 | (typical range) |
| Power Dissipation (Ptot) | 1.0 | W |
| Transition Frequency (fT) | 35 | MHz |
| Operating Temperature Range | -65 to +150 | ??C |
2N4931-Transistor Advantages vs Typical Alternatives
The 2N4931 transistor offers a robust combination of voltage and current handling that outperforms many general-purpose PNP transistors in medium power applications. Its wide operating voltage margin and moderate gain make it an excellent choice for reliable switching and amplification, especially where thermal stability and complementary pairing are critical. Compared to alternatives, it provides a balanced performance that supports efficient circuit design with proven semiconductor reliability.
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Typical Applications
- Audio amplifier stages where medium power gain and linearity are essential for sound fidelity and signal integrity.
- Switching circuits requiring reliable operation at collector currents up to 1.0A and voltages up to 100V.
- Complementary push-pull amplifier designs utilizing matched PNP and NPN transistors to improve efficiency.
- General purpose analog circuit applications including signal processing and driver stage implementations.
2N4931-Transistor Brand Info
The 2N4931 transistor is a widely recognized semiconductor device produced by several established manufacturers specializing in bipolar junction transistors. It is known for consistent quality and availability, making it a trusted choice for engineers designing medium power electronic circuits. This product is generally supplied in a standard TO-18 metal can package, ensuring effective heat dissipation and mechanical durability. Its long-standing presence in the market underscores its reliability and suitability for industrial and commercial electronics applications.
FAQ
What is the maximum collector current rating of the 2N4931 transistor?
The maximum collector current for this transistor is 1.0 ampere. This rating defines the highest continuous current the device can safely handle without damage under specified operating conditions.
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Can the 2N4931 be used in high-frequency applications?
This transistor has a transition frequency (fT) of approximately 35 MHz, making it suitable for moderate frequency amplification or switching tasks, but it is not intended for high-frequency RF applications where higher fT values are generally required.
What is the typical gain range for this transistor?
The DC current gain (hFE) of the device typically ranges from 30 to 100, allowing for adequate amplification in many analog and switching circuits while maintaining linearity and stability.
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Is the 2N4931 transistor complementary with any NPN devices?
Yes, it is designed to complement certain NPN transistors in push-pull amplifier configurations, facilitating efficient and balanced circuit designs that require matched PNP and NPN pairs.
What package type is the 2N4931 transistor commonly available in?
The device is commonly housed in a TO-18 metal can package, which offers excellent thermal conductivity and mechanical protection, suitable for industrial environments where robustness is required.
