DTC043XEBTL

Overview

The DTC043XEBTL is an NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors to simplify circuit design. It is housed in a compact SOT-416FL (EMT3F) surface-mount package with three terminals. Key electrical specifications include a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device incorporates a base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 10 kOhms. It offers a minimum DC current gain (hFE) of 30 at 10 mA and 5 V, with a transition frequency of 250 MHz and a power dissipation rating of 150 mW.

Feature Summary

• Integrates dual bias resistors within the transistor structure to reduce component count and board space.
• Provides high-speed switching capabilities suitable for logic interface applications.
• Features a low-profile surface-mount package designed for automated assembly processes.

Applications

• Logic level shifting between microcontrollers and peripheral devices
• Driver circuits for small-signal loads such as LEDs or relays
• Switching elements in portable electronic equipment

Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm resistor values and package dimensions. Ensure compatibility with RoHS directives and check for automotive qualification requirements if used in vehicle electronics. Confirm availability status as standard products may be subject to lifecycle changes.

Selection Notes

Select this component when a single NPN switch with integrated biasing is required. Compare R1 and R2 values against other models like DTC043EEBTL or DTC043TEB to match input impedance needs. Consider the 50 V breakdown voltage and 100 mA current limit for load suitability.

Part Context

This part belongs to the DTC043 series of pre-biased transistors from ROHM. It shares the EMT3F package form factor with related variants but differs in internal resistor configurations. The series is widely used in consumer electronics for simplified driver stages.

Replacement Considerations

DTC043XEFRATL is listed as a similar level replacement with the same pinout and package. Verify electrical parameters match before substitution.