| Price | $0.20 |
|---|---|
| Category | Components |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
The workhorse NPN switching transistor, in a TO-92 plastic case. It blocks 40V and will pass several hundred milliamps of collector current - roughly four times what a 2N3904 manages - which makes it the one to reach for when a small relay coil, a buzzer or a handful of LEDs is more than a signal transistor can take. It is also fast, with a transition frequency around 250-300 MHz, so it still works well in oscillators and low-power RF.
Key features
- NPN, 40V collector-emitter
- Handles far more current than a 2N3904
- Current gain typically 100 to 300
- Transition frequency around 250-300 MHz
- TO-92 case, pins emitter, base, collector
- For relays, buzzers and LED strings
Details
Specifications
| Model | 2N2222 / 2N2222A |
|---|---|
| Type | NPN bipolar junction transistor |
| Collector-emitter voltage | 40V |
| Collector current | 600-800 mA depending on version |
| DC current gain (hFE) | approx. 100 to 300 |
| Transition frequency | 250-300 MHz |
| Power dissipation | 500-625 mW depending on package |
| Package | TO-92 |
| Pinout | Emitter, base, collector (flat face towards you, left to right) |
