DTC144EETL

Overview

The DTC144EETL is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an EMT3 (SOT-416) surface-mount package. It integrates bias resistors with a ratio of 1:1, featuring typical values of 47 kOhms for both R1 and R2. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current (Ic) of 100 mA, and a DC current gain (hFE) minimum of 68 at 5 mA and 5 V. The device supports a transition frequency of 250 MHz, has a power dissipation rating of 150 mW, and operates within a temperature range up to +150°C.

Feature Summary

• Integrates dual bias resistors with a 1:1 ratio to simplify circuit design
• Provides high-speed switching capability suitable for interface applications
• Offers low saturation voltage for efficient signal processing

Applications

• Inverter circuits
• Interface logic drivers
• General-purpose driver stages

Procurement Notes

Verify the specific suffix 'TL' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm RoHS compliance status through official manufacturer documentation prior to integration into environmentally regulated products. Ensure the EMT3 package dimensions align with the target PCB footprint constraints.

Selection Notes

Select this component when a compact NPN digital transistor with equal base and emitter bias resistors is required. The 47 kOhm resistor values are suitable for standard logic level interfacing. Consider the 50 V breakdown voltage and 100 mA current capacity against load requirements. The SOT-416 package offers a small form factor for space-constrained designs.

Part Context

This part belongs to the DTC144 series of bias resistor built-in transistors from ROHM. It is functionally related to other variants such as DTC144EE and DTC144EE3TL, which share similar electrical characteristics but may differ in packaging or specific manufacturing revisions. The EMT3 designation specifically identifies the SOT-416 physical outline used in this version.

Replacement Considerations

DTC144EE serves as a direct functional equivalent within the same family. Verify that any substitute maintains the identical SOT-416 pinout and electrical parameters, particularly the 47 kOhm resistor ratio and 50 V voltage rating.