DTA143XEBTL

Overview

The DTA143XEBTL is a pre-biased PNP digital transistor manufactured by ROHM Semiconductor. It integrates a single bipolar junction transistor with two internal bias resistors within an EMT3 (SOT-416FL) surface-mount package. The device features a collector-emitter breakdown voltage of -50 V and a maximum continuous collector current of -100 mA. Internal resistance values are typically 4.7 kΩ for the base resistor (R1) and 10 kΩ for the emitter-base resistor (R2). Key electrical parameters include a minimum DC current gain (hFE) of 30 at -10 mA and -5 V, a transition frequency of 250 MHz, and a power dissipation rating of 150 mW. The component operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Integrates dual bias resistors to eliminate external components and simplify circuit design.
• Provides simplified switching functionality by requiring only on/off input conditions.
• Offers high-density packaging suitable for space-constrained surface-mount applications.

Applications

• General-purpose inverter circuits
• Driver circuits for relays and solenoids
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and resistance tolerances. Ensure the procurement source provides valid RoHS compliance certificates. Confirm that the supplier handles the tape-and-reel packaging correctly to prevent damage during storage and assembly processes.

Selection Notes

Select this component when a compact PNP solution with integrated biasing is required. Verify that the -50 V voltage rating and -100 mA current capacity meet the load requirements. Consider the 150 mW power dissipation limit relative to the expected operating temperature and thermal management capabilities of the target PCB layout.

Part Context

This part belongs to ROHM's standard Digital Transistor series, which combines transistors with built-in bias resistors. These devices are designed to replace multiple discrete components, reducing board space and assembly costs. The DTA143XEBTL specifically utilizes the EMT3 package format common in modern consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Cross-reference with other manufacturers' PNP digital transistors only after verifying exact resistance ratios and package dimensions.