EMF32T2R

Overview

The EMF32T2R is a dual digital transistor from ROHM Semiconductor, combining a DTA143T NPN bipolar junction transistor and a 2SK2019 N-channel MOSFET within a single SOT-563-6 package. This hybrid configuration provides a maximum collector-emitter voltage of 50V for the BJT and a drain-source voltage of 50V for the MOSFET. The device supports a continuous current rating of 100mA for both channels. It features a typical input resistance of 47 kOhms for the BJT section and operates with a power dissipation of 150 mW. The component is designed for surface-mount installation and functions within a temperature range extending up to +150 C.

Feature Summary

• Integrates a pre-biased NPN digital transistor and an N-channel enhancement-mode MOSFET in one compact footprint
• Eliminates external biasing resistors for the BJT channel to reduce circuit board space and assembly complexity
• Provides high-speed switching capabilities suitable for logic interface and load control applications

Applications

• Logic level shifting between microcontrollers and peripheral devices
• Driver circuits for small-signal loads requiring combined switching and buffering
• Interface modules in portable electronic equipment

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with ROHM Semiconductor or authorized distributors before procurement. Confirm that the SOT-563-6 pinout matches the target PCB layout design. Ensure thermal management strategies account for the 150 mW power dissipation limit under expected operating conditions to maintain reliability.

Selection Notes

Select this component when a design requires simultaneous NPN transistor switching and N-channel MOSFET drive functionality within a limited board area. It is appropriate for applications needing integrated biasing for the bipolar section alongside low-voltage MOSFET switching. Consider the 50V voltage ratings and 100mA current limits to ensure they exceed peak operational demands.

Part Context

This part belongs to ROHM's specialized digital transistor series, which integrates passive components with active semiconductor elements. The EMF32T2R specifically addresses designs needing mixed-signal switching solutions. It utilizes the EMT6 (SOT-563) package standard, allowing for automated surface-mount placement and contributing to miniaturized consumer electronics and industrial control boards.

Replacement Considerations

Direct functional substitutes may include other dual digital transistors from ROHM such as the EMH2T2R, though electrical characteristics differ. Verify pin compatibility and parameter alignment with alternative manufacturers like ON Semiconductor or Diodes Inc. when considering cross-brand replacements.