2N2222A NPN Bipolar Junction Transistor (TO-18 Metal Can Package)
The 2N2222A NPN Bipolar Junction Transistor (BJT) in a rugged TO-18 metal can package is a classic, high-reliability silicon transistor designed for medium-power switching and high-frequency amplification. Capable of handling a continuous collector current (I_C) up to 800mA and a collector-emitter breakdown voltage (V_CEO) of 40V, it offers switching speeds up to 250MHz. Its metallic hermetic enclosure provides superior thermal dissipation and durability compared to standard plastic packages, making it an excellent choice for relay driving, DC motor switching, PWM control, RF amplification, and industrial control circuits.
₹ 2
₹ 6
This transistor is designed for fast switching and efficient low-power signal amplification in electronic systems.
Key Features
- NPN bipolar junction transistor (BJT)
- High-speed switching capability
- Suitable for low to medium power applications
- High current gain (hFE)
- TO-18 metal can package for better heat dissipation
- Reliable and stable performance
- Ideal for amplification and switching
- Compatible with Arduino and embedded systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN BJT |
| Model | 2N2222A |
| Package Type | TO-18 Metal Can |
| Collector Current (Ic) | Up to 800 mA |
| Collector-Emitter Voltage | 40V (max) |
| Power Dissipation | ~500 mW |
| DC Gain (hFE) | 100 – 300 (typical) |
| Switching Speed | High-speed |
| Application Type | Switching / Amplification |
How to Use
- Identify pins: Emitter, Base, Collector
- Connect emitter to ground (common NPN configuration)
- Use base resistor for current limiting
- Connect load to collector side
- Apply input signal to base to switch transistor ON/OFF
- Use in amplifier or driver circuits
Applications
- Relay driver circuits
- LED switching systems
- Signal amplification circuits
- Arduino and microcontroller interfaces
- Motor driver low-power circuits
- High-speed switching applications
- General-purpose electronic projects
Package Includes
1 * 2N2222A NPN Bipolar Junction Transistor – TO-18
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