UMA9NTR

Overview

The UMA9NTR is a dual PNP digital transistor manufactured by ROHM Semiconductor, housed in a UMT5 surface-mount package. It integrates two DTA114E chips within a single compact footprint to reduce mounting area and cost. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50V and a continuous collector current (IC) of 100mA. The device features a typical base resistor (R1) of 10 kOhms and an emitter resistor (R2) of 10 kOhms. It achieves a transition frequency (fT) of 250MHz and maintains a maximum power dissipation (Pd) of 150mW. The DC current gain (hFE) is specified at a minimum of 20 under test conditions of 5mA collector current and 5V collector-emitter voltage.

Feature Summary

• Integrates two pre-biased PNP transistors into a single SMD component to minimize board space and assembly costs.

Applications

• General-purpose digital switching circuits requiring dual PNP logic interfaces.

Procurement Notes

Verify the specific ordering suffix against official ROHM documentation to confirm packaging type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the UMT5 package dimensions align with your PCB footprint design guidelines before finalizing procurement.

Selection Notes

Select this component when a dual PNP configuration with integrated biasing resistors is required for space-constrained designs. Verify that the 50V VCEO rating meets the circuit's voltage requirements. Consider the 10kΩ internal resistor values for base drive calculations. Compare performance metrics such as fT and hFE against alternative discrete transistor pairs or other digital transistor families from ROHM.

Part Context

The UMA9NTR belongs to the UMA9N series of digital transistors produced by ROHM Semiconductor. This series is designed to replace multiple discrete components, simplifying circuit design and reducing overall system size. The UMT5 package provides a small form factor suitable for modern high-density electronics manufacturing.

Replacement Considerations

Public documentation indicates the UMA9NTR contains two DTA114E chips. Verify if DTA114E variants or other ROHM dual PNP digital transistors with identical pinouts and electrical characteristics are available as direct replacements.