DTC044TEBTL

Overview

The DTC044TEBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors in an EMT3F (SOT-416FL) surface-mount package. It operates with a collector-emitter voltage of 50 V and a continuous collector current of 60 mA. The device includes a base resistor (R1) of 47 kOhms and an emitter-base resistor (R2) of 47 kOhms, resulting in a typical resistance ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 100 at 5 mA and 10 V, a transition frequency of 250 MHz, and a maximum power dissipation of 150 mW. The unit supports operation up to +150°C.

Feature Summary

• Integrates NPN bipolar junction transistor with dual bias resistors for simplified circuit design
• Provides high-speed switching capability with a 250 MHz transition frequency
• Offers robust thermal performance with a maximum operating temperature of +150°C

Applications

• Interface circuits between logic gates and loads
• Driver stages for relays and small motors
• Switching applications in consumer electronics

Procurement Notes

Verify the specific suffix 'BTL' against the manufacturer's official datasheet to confirm packaging details such as reel size or tape width. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the part number with authorized distributors to confirm current availability and lead times, as manufacturing status may vary.

Selection Notes

Select this component when a single NPN digital transistor with equal bias resistors (R1=R2=47kΩ) is required. Compare the 60 mA collector current limit against load requirements. Consider the EMT3F package dimensions for PCB layout constraints. Verify that the 50 V collector-emitter voltage rating exceeds the maximum circuit voltage.

Part Context

This part belongs to the DTC044 series of digital transistors from ROHM Semiconductor. It shares the same internal resistor configuration as the DTC044EEB but utilizes the EMT3F (SOT-416FL) package instead of larger alternatives. It serves as a compact solution for replacing discrete resistor-transistor networks in space-constrained designs.

Replacement Considerations

Direct pin-compatible substitutes within the same family include DTC044EEBTL if package compatibility allows. For equivalent specifications in different packages, consider DTC044EUBTL (SOT-323). Verify that any replacement maintains the 47kΩ/47kΩ resistor ratio and 50V VCEO rating.