DTA043XUBTL

Overview

The DTA043XUBTL is a single PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in biasing resistors within an EMT3F (SOT-416FL) surface-mount package. It operates with a collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device includes a base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 10 kOhms. Key electrical characteristics include a minimum DC current gain (hFE) of 35 at 5 mA and 10 V, a transition frequency of 250 MHz, and a maximum power dissipation of 150 mW. It supports an operating temperature range from -55°C to +150°C.

Feature Summary

• Integrates NPN or PNP bipolar junction transistor with internal bias resistors to simplify circuit design.
• Eliminates the need for external input resistors, enabling straightforward inverter configuration.
• Provides high-speed switching capabilities suitable for digital logic applications.

Applications

• General-purpose digital logic circuits requiring level shifting or inversion.
• Driver circuits for relays, lamps, and solenoids.
• Interface circuits between microprocessors and peripheral devices.

Procurement Notes

Verify the specific suffix against official ROHM documentation to confirm pinout and resistance values, as variations exist within the DTA043 family. Ensure the ordering code matches the required polarity and resistor ratio. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a PNP digital transistor with a 4.7 kOhm base resistor and 10 kOhm emitter-base resistor is required. Compare the 50 V breakdown voltage and 100 mA current rating against load requirements. Consider the SOT-416FL package dimensions for PCB layout constraints and thermal management needs relative to the 150 mW power dissipation limit.

Part Context

This part belongs to the ROHM DTA043 series of pre-biased transistors. It serves as the PNP counterpart to NPN variants like the DTC043 series. The series is designed to replace discrete resistor-transistor combinations, reducing board space and assembly complexity in standard electronic equipment applications.

Replacement Considerations

Direct substitutes may include other PNP digital transistors with similar 50V ratings and comparable resistor ratios (e.g., R1=4.7k, R2=10k). Verify pin compatibility and hFE ranges before substitution. Cross-reference with ROHM's complementary NPN types if circuit topology allows for polarity changes.