DTC143EEBTL

Overview

The DTC143EEBTL is an NPN digital transistor manufactured by Rohm Semiconductor, featuring built-in bias resistors for simplified circuit design. It operates with a maximum collector-emitter voltage of 50 V and supports a continuous collector current of 100 mA. The device includes two integrated resistors: R1 (base) and R2 (emitter), both valued at 4.7 kOhms. Key electrical parameters include a minimum DC current gain (hFE) of 30 at 10 mA and 5 V, a maximum saturation voltage of 300 mV at 500 µA base current and 10 mA collector current, and a transition frequency of 250 MHz. Power dissipation is rated at 150 mW, housed in the EMT3F (SOT-416FL) surface-mount package.

Feature Summary

• Integrates dual bias resistors to eliminate external input components
• Provides high-speed switching capability via 250 MHz transition frequency
• Ensures low saturation voltage for efficient signal driving

Applications

• Inverter circuits requiring compact component count
• Interface logic level shifting between microcontrollers and peripherals
• Driver stages for small-signal loads

Procurement Notes

Verify the specific suffix 'EBTL' against the manufacturer's official datasheet to confirm the EMT3F package and 150 mW power rating. Ensure compatibility with RoHS3 standards if required by the target assembly process. Cross-reference the part number with authorized distributors to confirm availability and lead times, as standard delivery periods may vary based on production schedules.

Selection Notes

Select this component when a compact NPN digital transistor with equal bias resistors (4.7 kOhms) is needed. It is suitable for applications requiring 50 V breakdown and 100 mA current handling within a small SMD footprint. Compare power dissipation ratings against thermal constraints in the final enclosure. Verify that the hFE gain meets the minimum drive requirements of the connected load.

Part Context

This part belongs to the Rohm DTC143 series of pre-biased NPN transistors. The series offers various packages and resistor configurations to suit different space and performance needs. The EMT3F package provides a small form factor suitable for high-density PCB layouts. This specific model integrates standard 4.7 kOhm resistors for general-purpose switching applications.

Replacement Considerations

Check for direct pin-compatible substitutes from Rohm or other manufacturers offering identical 50V/100mA/NPN specifications with 4.7kOhm internal resistors. Verify package dimensions for EMT3F/SOT-416FL to ensure mechanical fit. Confirm electrical parameter equivalence, particularly hFE and Vce(sat), before substitution.