
2N2222 NPN Transistor
Few parts have earned a permanent spot on the parts wall like the 2N2222 NPN Transistor, a general-purpose silicon BJT trusted for decades in switching and small-signal amplification. Housed in a compact three-pin TO-92 package, it comfortably handles up to 800mA of collector current at 40V, with a current gain (hFE) typically between 100 and 300. That balance of speed, current capacity, and ruggedness makes it ideal for driving relays and small motors from a microcontroller pin, building logic-level switches, oscillator stages, and audio preamps. Robotics teams and engineering students in Bangladesh meet this transistor in nearly every intermediate circuit course. To buy the 2N2222 NPN transistor in Bangladesh at the latest price in Bangladesh, order it from Tekko and get it delivered to your door.
Key Features:
• NPN silicon bipolar junction transistor in TO-92 package
• Collector-emitter voltage (VCEO) up to 40V
• Collector current (IC) up to 800mA for relays, lamps and small motors
• DC current gain hFE 100-300 for dependable amplification
• Transition frequency approx 300MHz — fast enough for PWM switching duty
• Works with Arduino, ESP32, ESP8266 and standard 5V logic projects
• Equivalent replacements include PN2222 and 2N2222A
Not sure it will work? Test your circuit free in Tekko Sim — on your phone, in Bangla or English.
| Category | Modules |
| Model no. | 2N2222-TO92 |
| Availability | In stock |
| In stock | 15 pcs |
| Delivery | Cash on Delivery, nationwide Bangladesh |
| Polarity | NPN |
| Package | TO-92, 3-pin through-hole |
| Collector-Emitter Voltage (VCEO) | 40V |
| Collector-Base Voltage (VCBO) | 75V |
| Emitter-Base Voltage (VEBO) | 6V |
| Collector Current (IC) | 800mA max |
| DC Current Gain (hFE) | 100 to 300 |
| Transition Frequency (fT) | approx 300MHz |
| Power Dissipation (PD) | 625mW |
| Pinout (flat side facing you) | 1-Emitter, 2-Base, 3-Collector |
| Operating Temperature | -55°C to +150°C |
| Cross Reference | PN2222, 2N2222A, BC337 (verify pinout) |
