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The MMDT2227M-7 is a complementary NPN/PNP small-signal surface-mount transistor manufactured by Diodes Incorporated. It integrates one 2222A type (NPN) and one 2907A type (PNP) in an SOT-26 package. The NPN section supports a collector-emitter voltage of 40V, collector-base voltage of 75V, continuous collector current of 600mA, and power dissipation of 300mW. The PNP section provides a collector-emitter voltage of -60V, collector-base voltage of -60V, continuous collector current of -600mA, and power dissipation of 300mW. Operating temperature ranges from -55°C to +150°C.
Verify the component authenticity by checking the marking code K27 on the SOT-26 package against official datasheets. Confirm the date code format matches the manufacturer's standard year-month coding system. Ensure the ordering suffix -7 corresponds to the 3000 units per tape and reel packaging specification. Cross-reference the part number with authorized distributors to confirm availability and compliance status.
Select this component when a compact complementary NPN/PNP pair is required for space-constrained designs. The SOT-26 package offers a small footprint suitable for surface mount technology. Consider the specific voltage ratings of 40V for NPN and 60V for PNP to ensure compatibility with circuit requirements. Evaluate the 300mW power dissipation capability for thermal management in the final application.
The MMDT2227M-7 belongs to the MMDT22 series of complementary transistors from Diodes Incorporated. It combines the characteristics of the 2222A NPN and 2907A PNP transistors into a single dual package. This integration simplifies board layout and reduces component count compared to using discrete transistors. The series is designed for general-purpose small-signal applications requiring matched performance.
DMB2227A-7 is a publicly confirmed substitute part number.