MMBT2222A Datasheet – NPN Switching Transistor – Philips

This is NPN Transistor with 600mA, 40V, SOT-23 Type.

Part Number: MMBT2222A, Marking Code : 7C*

Function: NPN Switching Transistor

Package: SOT-23 Type

Manufacturer: Philips Electronics ( )

Philips Electronics spun off its division into a separate company called NXP Semiconductors in 2006, making it an independent, publicly traded company.

Image and Pinouts:

MMBT2222A datasheet

What is MMBT2222A?

This is a surface mount version of the popular 2N2222A bipolar junction transistor (BJT). Like the 2N2222A, the MMBT2222A is an NPN type transistor that is commonly used in electronic circuits for amplification, switching, and other applications.

This is NPN switching transistor in a SOT23 plastic package. PNP complement: PMBT2907A.


1. High current (max. 600 mA)
2. Low voltage (max. 40 V).
3. Good gain characteristics
4. Fast switching speeds
5. Reliable performance

Advantages vs Disadvantages


1. Small size and surface mount package make it suitable for compact electronic designs where space is limited

2. Good gain characteristics and fast switching speeds make it suitable for a wide range of electronic applications


1. Limited voltage and current ratings compared to other transistors, which makes it unsuitable for high-power applications

2. May require additional components such as resistors and capacitors to achieve desired performance


Absolute Maximum Ratings

1. collector-base voltage open emitter : VCBO = 75 V
2. collector-emitter voltage open base :VCEO = 40 V
3. emitter-base voltage open collector : VEBO = 6 V
4. collector current (DC) : IC = 600 mA
5. peak collector current : ICM = 800 mA
6. peak base current :IBM = 200 mA
7. total power dissipation : Ptot = 250 mW


1. Switching and linear amplification.


Q: What is the difference with 2N2222A?

A: The MMBT2222A is a surface mount version of the 2N2222A, with a slightly lower voltage and current rating. They have similar features and characteristics but differ in their packaging.

Q: What is the maximum frequency at which this transistor can operate?

A: The MMBT2222A has a maximum frequency rating of 300 MHz, which is the same as the 2N2222A.

Other data sheets are available within the file: MMBT2222

MMBT2222A Datasheet PDF Download

MMBT2222A pdf