DTC144EUBTL

Overview

The DTC144EUBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323FL-3 surface-mount package. It integrates bias resistors with a typical input resistance of 47 kOhms and a resistor ratio of 1. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The device features a minimum DC current gain (hfe) of 68 at 5 mA and 5 V, with a maximum operating frequency of 250 MHz. It supports a maximum operating temperature of +150 C and includes an emitter-base voltage (VEBO) of 3 V.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count.
• Provides high-speed switching capabilities suitable for applications requiring frequencies up to 250 MHz.
• Offers robust thermal performance with a maximum junction temperature rating of +150 C.

Applications

• Interface circuits for logic level translation
• Driver stages for small-signal loads
• Switching applications in consumer electronics

Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, as variants exist in cut tape, reel, and MouseReel configurations. Confirm RoHS compliance status through official documentation prior to integration. Ensure the selected variant matches the required supply chain lead times and minimum order quantities defined by the distributor or manufacturer.

Selection Notes

Select this component when a compact NPN digital transistor with integrated 47 kOhm bias resistors is required. Compare against alternatives like DTC144ECAT116 if a different package such as SOT-23-3 is preferred. Verify that the 50 V voltage rating and 100 mA current capacity meet the specific load requirements of the target application circuit.

Part Context

This part belongs to the DTC144EUB series of digital transistors from ROHM Semiconductor. It is designed as a replacement for discrete resistor-transistor networks, offering a smaller footprint via the SOT-323FL-3 package. The series is commonly used in portable devices where space conservation and simplified assembly are critical design constraints.

Replacement Considerations

The DTC044EUBTL is listed as a recommended alternative. Verify pinout compatibility and electrical parameter equivalence before substitution. Other family members like DTC144EU3HZGT106 offer similar specifications in standard SOT-323 packages.