EMA5T2R

Overview

The EMA5T2R is a dual digital transistor manufactured by ROHM Semiconductor, featuring two PNP transistors integrated with bias resistors within a compact SOT-553-5 surface-mount package. This component operates with a maximum collector-emitter voltage of -30 V and supports a continuous collector current of -100 mA. It includes typical input resistors of 2.2 kOhms and maintains a minimum DC current gain (hFE) of 80 at -10 mA and -5 V. The device dissipates up to 150 mW of power and functions reliably at maximum operating temperatures reaching +150°C, making it suitable for high-density circuit designs requiring efficient signal switching.

Feature Summary

• Integrates dual PNP transistors with built-in bias resistors to reduce external component count
• Utilizes a compact SOT-553-5 surface-mount package for space-constrained applications
• Supports high-temperature operation up to +150°C for robust environmental performance

Applications

• Signal switching in portable electronic devices
• Driver circuits for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest datasheet before ordering. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure storage conditions adhere to moisture sensitivity levels specified in the official documentation to prevent package damage during soldering processes.

Selection Notes

Select this component when a dual PNP configuration with integrated biasing is required in a small footprint. Compare the 2.2 kOhm input resistance and -30 V voltage rating against circuit requirements. Consider the SOT-553-5 package dimensions and thermal dissipation limits relative to adjacent components on the PCB layout.

Part Context

This part belongs to the EMA5 series of digital transistors from ROHM Semiconductor. The series focuses on providing pre-biased transistor solutions that simplify circuit design by replacing multiple discrete components. These devices are engineered for general-purpose switching applications where board space is limited and consistent electrical characteristics are critical for reliable operation.

Replacement Considerations

Check for direct pin-compatible alternatives within the same ROHM family or cross-reference with other manufacturers offering dual PNP digital transistors in SOT-553 packages. Verify that substitute parts match the -30 V rating, -100 mA current capacity, and 2.2 kOhm input resistance specifications.