UMA3NTR

Overview

The UMA3NTR is a complex transistor array manufactured by ROHM Semiconductor, integrating two PNP transistors within a single UMT5 (SOT-353) surface-mount package. This dual configuration supports supply voltages up to 1V and provides a collector current of -0.1A per channel. The device features input resistances of 4.7kΩ for both terminals and operates with a collector-emitter voltage of -50V. With a power dissipation rating of 0.15W and a storage temperature range from -55°C to +150°C, it serves as a compact solution for digital switching applications.

Feature Summary

• Integrates two pre-biased PNP transistors in a compact SMD footprint
• Includes built-in base resistors to simplify circuit design
• Optimized for low-voltage operation suitable for portable electronics

Applications

• Differential amplifier circuits
• High-frequency crystal oscillators
• Starters and driver circuits

Procurement Notes

Verify the specific ordering suffix and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the component meets all environmental regulations required for the target market. Ensure that the sourcing channel is authorized to guarantee product authenticity and traceability throughout the supply chain.

Selection Notes

Select this component when a dual PNP configuration with integrated biasing resistors is required in a minimal space. It serves as an equivalent alternative to single-part solutions like the DTA143T. Consider the -50V collector-emitter voltage and -0.1A current limits to ensure adequate headroom for the intended load conditions.

Part Context

This part belongs to the UMA series of complex transistors designed for high-density PCB layouts. The UMT5 package allows for efficient use of board space compared to discrete component arrangements. It is categorized under standard-grade products intended for general-purpose electronic equipment rather than specialized automotive or industrial environments.

Replacement Considerations

The DTA143T is listed as an equivalent single-part reference. Verify pin compatibility and electrical parameters carefully when substituting discrete components for this integrated array.