DTA144EUBTL

Overview

The DTA144EUBTL is a single PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within an SMD/SMT UMT3F (SOT-323FL) package. It operates with a collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device includes two integrated resistors, R1 and R2, both typically valued at 47 kOhms with a ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 68 at -5 mA and -5 V, a transition frequency of 250 MHz, and a maximum power dissipation of 200 mW. The component supports a maximum operating temperature of +150 C.

Feature Summary

• Integrates dual bias resistors to simplify circuit design and reduce board space.
• Provides high-speed switching capabilities suitable for digital logic applications.
• Offers low saturation voltage for efficient signal transmission.

Applications

• General-purpose digital switching circuits
• Interface between microcontrollers and peripheral devices
• Level shifting in portable electronic equipment

Procurement Notes

Verify the specific suffix 'UBTL' corresponds to the required tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering quantity aligns with standard factory pack sizes to avoid partial reel handling issues during assembly.

Selection Notes

Select this component when a PNP pre-biased transistor with 47 kOhm input resistance is required. Compare against NPN variants like DTC144E if polarity requirements differ. Verify that the 50 V breakdown voltage and 100 mA current rating meet the specific load conditions of the target application circuit.

Part Context

This part belongs to the DTA144 series of digital transistors from ROHM Semiconductor. It shares functional similarities with other members of the family but differs in resistor values and polarity. The UMT3F package allows for compact surface-mount implementation in consumer electronics and industrial control systems requiring small form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official ROHM documentation or distributor cross-reference tools for verified alternatives before substitution.