2N2919U-Transistor Overview
The 2N2919U is a widely used NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. Known for its robustness and reliable performance, it offers a maximum collector current of 600mA and a collector-emitter voltage rating of 40V, making it suitable for medium power circuits. This transistor features a high current gain and low saturation voltage, enabling efficient signal amplification and switching with minimal power loss. Its TO-18 metal can package ensures durability and heat dissipation, ideal for industrial and commercial electronics. For detailed technical support and product availability, visit IC Manufacturer.
2N2919U-Transistor Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Bipolar Junction Transistor |
| Maximum Collector-Emitter Voltage (Vce) | 40 V |
| Maximum Collector Current (Ic) | 600 mA |
| Power Dissipation (Ptot) | 625 mW |
| DC Current Gain (hFE) | 40 to 300 (depending on Ic) |
| Transition Frequency (fT) | 100 MHz (typical) |
| Collector-Base Voltage (Vcb) | 60 V |
| Emitter-Base Voltage (Veb) | 5 V |
| Package Type | TO-18 Metal Can |
| Operating Temperature Range | -65??C to +200??C |
2N2919U-Transistor Key Features
- High Collector Current Capacity: Supports up to 600mA, enabling effective switching and amplification in medium power circuits.
- Wide Voltage Ratings: Collector-emitter voltage up to 40V ensures compatibility with various industrial voltage levels, enhancing design flexibility.
- High Current Gain (hFE): With a gain range between 40 and 300, it provides reliable amplification suitable for signal conditioning and interface circuits.
- Durable TO-18 Package: Metal can construction improves thermal conductivity and mechanical durability, supporting long-term reliability in harsh environments.
Typical Applications
- Signal Amplification: Suitable for low to medium power amplification stages in audio, control, and sensor circuits, providing clear and stable signal gain.
- Switching Circuits: Used in relay drivers, LED drivers, and other switching applications where reliable on/off control is necessary.
- Oscillator Circuits: Functions as an active element in oscillator and timing circuits due to its predictable gain and frequency response.
- Industrial Control Systems: Applicable in various control and interface modules requiring durable and consistent transistor performance.
2N2919U-Transistor Advantages vs Typical Alternatives
This transistor offers a balanced combination of voltage handling, current capacity, and gain, making it a versatile choice compared to typical small-signal transistors. Its metal TO-18 package enhances thermal management and mechanical stability, outperforming plastic-packaged alternatives in rugged environments. The device??s broad temperature range and reliable gain characteristics provide engineers with dependable performance in diverse industrial applications, improving overall system reliability and efficiency.
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2N2919U-Transistor Brand Info
The 2N2919U transistor is a classic semiconductor device originally developed and popularized by manufacturers such as Fairchild Semiconductor, ON Semiconductor, and Texas Instruments. It remains a widely recognized and standardized part number in the industry, ensuring broad availability and compatibility. These manufacturers adhere to strict quality controls and provide detailed datasheets, making the 2N2919U a trusted component for engineers worldwide. Its longstanding presence on the market reflects its proven reliability and consistent electrical characteristics.
FAQ
What type of transistor is the 2N2919U and what are its basic functions?
The 2N2919U is an NPN bipolar junction transistor designed mainly for amplification and switching. It operates by controlling current flow between the collector and emitter terminals using a small base current, making it suitable for signal amplification and digital switching applications.
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What is the maximum collector current the 2N2919U can handle?
This transistor can safely handle a collector current of up to 600 milliamperes (mA






