2N3866 NPN RF Power Transistor 30V 0.4A TO-39 Metal Package

2N3866 NPN RF Power Transistor 30V 0.4A TO-39 Metal Package

The 2N3866 is a high-performance NPN RF power transistor designed for low-power, high-frequency applications. It is optimized for VHF and UHF amplification and provides efficient signal gain with low noise, making it a reliable choice for communication and radio frequency circuits.

With a collector-emitter voltage of 30V and a collector current of 0.4A, the 2N3866 can handle moderate RF power levels while maintaining stable operation over a wide frequency range. Its high transition frequency (fT ? 500 MHz) ensures effective performance in oscillators, RF amplifiers, and driver stages, allowing circuits to maintain signal integrity and minimal distortion.

The transistor is housed in a TO-39 metal package, which ensures excellent thermal conductivity, mechanical strength, and long-term reliability. The metal can design allows for easy mounting on heatsinks or chassis to maintain stable junction temperatures, even under continuous high-frequency operation.

The 2N3866’s robust design and consistent characteristics make it suitable for both professional and hobbyist applications, including amateur radio, RF testing, educational projects, and low-power transmitter circuits. Its combination of high gain, low noise, and stable thermal performance provides a versatile solution for engineers and electronics enthusiasts alike.

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Key Features

• Type: NPN RF Power Transistor
• Collector–Emitter Voltage (Vce): 30V
• Collector Current (Ic): 0.4A
• Collector–Base Voltage (Vcb): 30V
• Emitter–Base Voltage (Veb): 5V
• Power Dissipation (Ptot): 3W
• DC Current Gain (hFE): 40–200
• Transition Frequency (fT): 500 MHz typical
• Low Noise & High Gain: Optimized for RF applications
• TO-39 Metal Package: Durable, thermally efficient, and mechanically robust
• Reliable Operation: Stable performance under continuous high-frequency conditions
• RoHS Compliant

Applications

• VHF and UHF RF amplifier circuits
• Oscillator and driver stages
• Low-power RF transmitter and receiver circuits
• Radio communication equipment
• Laboratory RF projects and experimentation
• Signal amplification in RF systems
• Educational and hobbyist electronics
• High-frequency driver stages for medium-power RF transistors

2n3866-transistor-datasheet