MMDT5114W

Overview

The MMDT5114W is a surface-mount digital PNP transistor manufactured by Diotec Semiconductor, housed in an SOT-323 package. It integrates bias resistors to simplify circuit design and reduce component count. Key electrical parameters include a collector-emitter voltage of -50 V, a continuous collector current of -100 mA, and a power dissipation rating of 200 mW at 25°C ambient temperature. The device features a typical DC current gain (hFE) of 80 and a transition frequency of 250 MHz. Internal resistor values are R1 = 10 kΩ and R2 = 47 kΩ. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates dual bias resistors (R1=10kΩ, R2=47kΩ) for simplified switching applications
• Compact SOT-323 surface-mount package for space-constrained designs
• High transition frequency of 250 MHz suitable for signal processing
• Compliant with RoHS, REACH, and Conflict Minerals regulations

Applications

• Digital control circuits
• General-purpose switching applications
• Signal processing stages

Procurement Notes

Verify the specific suffix when ordering. Standard versions lack automotive qualification. Versions with suffixes -Q or -AQ indicate AEC-Q101 compliance or qualification respectively. Confirm package type is SOT-323 and check datasheet for detailed mechanical dimensions and soldering conditions before integration into production.

Selection Notes

Select this component for PNP switching tasks requiring integrated base drive resistors. Ensure the -50V voltage rating and -100mA current capacity meet circuit requirements. Consider the -AQ suffix if automotive reliability standards are mandatory. Verify thermal management capabilities as power dissipation is rated at 200mW on a PCB with 3mm² copper pads.

Part Context

This part belongs to the MMDT5110W through MMDT511NW series of SMD digital PNP transistors. Each variant in the series offers different internal resistor combinations while maintaining identical maximum ratings and package dimensions. The MMDT5114W specifically utilizes a 10kΩ/47kΩ resistor ratio optimized for its designated input characteristics.

Replacement Considerations

Direct substitutes within the same family include MMDT5110W, MMDT5111W, MMDT5112W, MMDT5113W, and MMDT511NW. Note that these alternatives have different internal resistor values (R1/R2 ratios), which may affect switching thresholds and drive currents. Automotive-grade equivalents are available with -Q or -AQ suffixes.