EMH59T2R

Overview

The EMH59T2R is a dual NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-563-6 surface-mount package. It integrates two NPN transistors with built-in bias resistors, featuring a typical input resistance of 10 kOhms and a resistor ratio of 4.7. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 150 mV, a continuous collector current of 100 mA, and a power dissipation rating of 150 mW. The device supports a minimum DC current gain (hFE) of 80 at 5 mA and 10 V, operates up to a maximum frequency of 250 MHz, and has an emitter-base voltage (VEBO) of 1.7 V. It functions within a temperature range up to +150 C.

Feature Summary

• Integrates dual NPN transistors with built-in bias resistors for simplified circuit design
• Utilizes compact SOT-563-6 surface-mount packaging for space-constrained applications
• Supports high-frequency operation up to 250 MHz

Applications

• Digital switching circuits requiring integrated biasing
• High-speed signal processing interfaces
• Portable electronic devices with limited board space

Procurement Notes

Verify the specific ordering suffix and tape/reel configuration against official ROHM documentation before procurement. Confirm that the component meets all required RoHS compliance standards for your target market. Ensure that the supply chain source provides valid traceability data. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit components. Validate that the delivered quantity matches the standard packing unit specified in the datasheet.

Selection Notes

Select this component when a dual NPN configuration with fixed bias ratios is required. The 10 kOhm input resistance suits general-purpose logic interfacing. Consider the 150 mW power dissipation limit for thermal management. Compare against similar models like EMH51T2R if different input resistance values are needed. Ensure the 100 mA current rating meets the load requirements of the application.

Part Context

This component belongs to ROHM's series of bias resistor built-in transistors designed for replacing multiple discrete components. It consolidates two NPN transistors and their associated base resistors into a single SOT-563 package. This integration reduces footprint and simplifies assembly compared to using separate transistors and resistors. The part is distinct from PNP variants like EMB59T2R and other configurations within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with equivalent parts such as those from other manufacturers only through direct parameter comparison against the official datasheet.