DTC044EUBTL

Overview

The DTC044EUBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within an SOT-323FL-3 surface-mount package. It operates with a maximum collector-emitter voltage of 150 mV and supports continuous collector currents up to 100 mA. The device incorporates typical input and emitter-base resistances of 47 kOhms each, maintaining a resistor ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at 5 mA and 10 V, a maximum operating frequency of 250 MHz, and power dissipation capability of 200 mW. The component is designed for high-speed switching applications with a maximum operating temperature of +150°C.

Feature Summary

• Integrates NPN transistor with dual 47 kOhm bias resistors in a compact SMD footprint
• Supports high-frequency operation up to 250 MHz for fast switching performance
• Provides enhanced thermal stability with a maximum operating temperature of +150°C

Applications

• General-purpose digital switching circuits
• Interface drivers for logic level translation
• High-speed signal processing components

Procurement Notes

Verify the specific suffix 'UBTL' against official ROHM documentation to confirm packaging configuration and tape-and-reel specifications. Ensure compatibility with SOT-323FL-3 mounting requirements during PCB layout. Cross-reference datasheet revisions to validate electrical parameters against current production batches.

Selection Notes

Select this component when a pre-biased NPN solution is required to reduce external resistor count and board space. The 47 kOhm resistor values suit standard logic interface applications. Consider the 150 mV VCEO limit carefully, as it differs significantly from standard discrete transistors, ensuring it aligns with the specific low-voltage switching requirements of the target circuit design.

Part Context

This part belongs to the DTC044EUB series of digital transistors from ROHM Semiconductor. It shares the same internal structure and electrical characteristics as the through-hole or alternative package variant DTC044EEB, differing primarily in the SOT-323FL-3 surface-mount form factor. The series is categorized under standard digital transistors with built-in resistors.

Replacement Considerations

The DTC144EUBTL is listed as a recommended alternative in distributor catalogs. Verify pinout compatibility and electrical parameter alignment before substitution.