This is NPN Transistor.
Part Number : 2N2222A
Function : HIGH SPEED SWITCHE, NPN Transistor
Package : TO-39, TO-18 Type
Manufacturers : STMicroelectronics
The 2N2219A and 2N2222A are silicon Planar Epitaxial NPN transistors in Jedec TO-39 (for 2N2219A) and in Jedec TO-18 (for 2N2222A) metal case. They are designed for high speed switching application at collector current up to 500mA, and feature useful current gain over a wide range of collector current, low leakage currents and low saturation voltage.
Absolute Maximum Ratings
1. Collector-Base Voltage (IE = 0) : VCBO = 75 V
2. Collector-Emitter Voltage (IB = 0) : VCEO = 40 V
3. Emitter-Base Voltage (IC = 0) : VEBO = 6 V
4. Collector Current : IC= 0.6 A
5. Collector Peak Current (tp < 5 ms) : ICM = 0.8 A
Other data sheets within the file : 2N2218, 2N2219, 2N2219A, 2N2221, 2N2222