Diodes Inc. NPN Bipolar Transistor, 40V 600mA, SOT-23 SMD

The Diodes Inc. MMBT2222A-7-F is a robust and reliable NPN small-signal bipolar transistor designed for surface-mount applications. Featuring an epitaxial planar die construction, it delivers excellent performance in low-power amplification and switching circuits, making it a versatile component for a wide array of electronic designs. Its low saturation voltage (VCE(sat) of 300mV at 150mA) ensures efficient operation and minimal power loss, which is critical for battery-powered and energy-sensitive devices.

Encased in a compact, moulded plastic SOT-23 package with a UL94V-0 rated 'Green' compound, this transistor meets high safety and environmental standards. The matte tin-plated terminals provide superior solderability, complying with MIL-STD-202, method 208, for consistent and reliable assembly. With a maximum collector-emitter voltage of 40V and a continuous collector current rating of 600mA, it is well-suited for driving relays, LEDs, or as an amplifier in audio pre-amps and signal processing stages.

Key Specifications & Features:

• High Frequency Performance: A transition frequency of 300MHz supports applications in RF and high-speed switching.
• Stable Gain: Offers a minimum DC current gain (hFE) of 100, providing consistent amplification.
• Thermal Reliability: Capable of operating at temperatures up to 150°C, with a power dissipation of 310mW.
• Complementary Pairing: The complementary PNP type for this device is the MMBT2907A, facilitating the design of push-pull amplifiers and other symmetrical circuits.
• Surface-Mount Design: The 3-pin SOT-23 case style is ideal for automated PCB assembly, saving valuable board space in modern, compact electronics.

This transistor is an essential component for designers and engineers looking for a dependable, high-performance SMD solution for general-purpose amplification and switching tasks in consumer electronics, tele