MMBT2222A | datasheet | transistor pinout | equivalent STMicroelectronics
- Transistor Type: NPN
- Current-Collector(Ic)(Max): 600 mA
- Voltage-Collector Emitter Breakdown (Max): 40 V
- Package: TO-236-3, SC-59, SOT-23-3

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MMBT2222A Pinout
MMBT2222A Pinout Diagram
The MMBT2222A is a popular NPN transistor used in general-purpose amplification and switching applications. It features three pins: the emitter, base, and collector. Understanding the function of each pin is essential for proper integration of the transistor into your electronic circuits. The table below provides the detailed pinout configuration and descriptions of each pin.
Pin Number | Pin Name | Description |
---|---|---|
1 | Emitter | The emitter pin is the source of current in an NPN transistor. It is connected to the lower voltage in the circuit. |
2 | Base | The base pin controls the current flowing between the collector and emitter. A small current into the base will allow current to flow from the collector to the emitter. |
3 | Collector | The collector pin is where current flows out of the transistor. It is connected to the higher voltage in the circuit. |
The MMBT2222A is widely used due to its reliability and versatility in various electronic circuits. By understanding the pinout and its respective functions, you can effectively use this transistor for applications such as signal amplification and switching tasks. Ensure the correct connection of the pins as per the described functionality for optimal performance in your projects.