2N2219 Small Signal NPN Switching Transistor TO-39 Metal Package

2N2219 Small Signal NPN Switching Transistor TO-39 Metal Package

The 2N2219 is a small-signal NPN transistor designed for switching and low-power amplification applications.
It offers reliable performance, fast switching, and moderate gain, making it ideal for general-purpose electronic circuits.
Encased in a TO-39 metal package, the transistor provides excellent thermal stability, robust construction, and long-term reliability, suitable for hobby, industrial, and educational applications.

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Features

• NPN Bipolar Junction Transistor (BJT) – suitable for switching and small-signal amplification
• TO-39 Metal Package: Durable and thermally efficient
• Fast Switching: Ideal for control and logic circuits
• Reliable & Stable: Performs consistently under varying temperatures and loads
• Moderate Gain (hFE): Efficient for low-power amplification
• Rugged Construction: Can withstand moderate power and environmental stresses
• RoHS Compliant: Lead-free and environmentally safe

Applications

• Switching circuits – low-current control applications
• Small-signal amplification – audio and instrumentation circuits
• Relay and solenoid drivers – moderate-current switching
• Oscillator and timer circuits – stable waveform generation
• Sensor and interface circuits – reliable low-power control
• Hobby, educational, and DIY electronics – versatile and easy to use
• Replacement for legacy circuits – compatible with older designs

2n2219-transistor-datasheet