MMDT2227A_R1_00001

Overview

The MMDT2227A_R1_00001 is a complementary NPN/PNP small-signal surface-mount transistor manufactured by Panjit International Inc. It integrates one MMDT2222A-type NPN and one MMDT2907A-type PNP in an SOT-363 case. The NPN section supports a collector-emitter voltage (VCEO) of 40 V, collector-base voltage (VCBO) of 75 V, emitter-base voltage (VEBO) of 6 V, and continuous collector current (IC) of 600 mA. The PNP section provides a VCEO of -60 V, VCBO of -60 V, VEBO of -5 V, and IC of -600 mA. Both sections share a maximum power dissipation (Pd) of 225 mW and operate within a junction temperature range of -55°C to +150°C.

Feature Summary

• Complementary pair integrating NPN and PNP transistors in a single ultra-small surface mount package
• Epitaxial planar die construction for reliable switching and amplification performance
• Halogen-free green molding compound compliant with IEC61249 standards

Applications

• Low power amplification circuits
• General purpose switching applications

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packing type and orientation. The R1 suffix indicates Tape and Reel packaging on a 7-inch plastic reel. Confirm RoHS compliance status and verify the manufacturer's latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when space-constrained designs require matched complementary NPN/PNP pairs. Ensure the required collector currents do not exceed 600 mA and that the operating voltage remains within the specified limits for both polarities. Verify thermal management requirements as the total power dissipation is limited to 225 mW.

Part Context

This part belongs to the MMDT2227 series of complementary bipolar junction transistors. It serves as a compact alternative to discrete dual-transistor configurations, simplifying PCB layout. The device is designed for general-purpose low-power electronics where size and cost efficiency are prioritized over high-voltage or high-current capabilities.

Replacement Considerations

MMDT2222ATB6-AU

FAQ

What is the difference between the NPN and PNP sections?

The NPN section (MMDT2222A-type) has a higher collector-base breakdown voltage (75 V) compared to the PNP section (MMDT2907A-type), which is rated at 60 V. Both sections share identical power dissipation ratings.

Does the R1 suffix indicate a functional change?

No, the R1 suffix only specifies the packaging configuration. It denotes Tape and Reel packing on a 7-inch plastic reel without altering the electrical characteristics of the transistor.