DTA143ECAHE3-TP

Overview

The DTA143ECAHE3-TP is a pre-biased PNP digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single bipolar junction transistor with internal biasing resistors in a compact SOT-23 surface-mount package. The device supports a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at 10 mA and 5 V, a typical transition frequency of 250 MHz, and a power dissipation rating of 200 mW. The component complies with RoHS standards and is designed for automated assembly processes.

Feature Summary

• Integrates a PNP transistor with dual biasing resistors to simplify circuit design
• Optimized for high-speed switching applications with a 250 MHz transition frequency
• Automotive-grade qualification ensuring reliability under varying operational conditions

Applications

• Switching circuits in automotive electronic control units
• Driver stages for relays and solenoids
• Logic level translation and buffer interfaces

Procurement Notes

Verify the specific suffix HE3 against official MCC documentation to confirm AEC-Q101 automotive qualification status. Confirm that the ordering code matches the required SOT-23 package variant. Ensure compliance with local environmental regulations regarding halogen-free content as indicated in manufacturer product change notifications.

Selection Notes

Select this component when a PNP configuration with integrated base and emitter resistors is required. Verify that the -50 V breakdown voltage and -100 mA current limits meet the target circuit requirements. Consider the 200 mW power dissipation capability relative to the expected thermal environment and duty cycle of the application.

Part Context

This part belongs to the DTA143ECA series of pre-biased transistors from Micro Commercial Components. It serves as an alternative to discrete resistor-transistor networks, reducing board space and assembly costs. The HE3 suffix typically denotes specific automotive or enhanced reliability variants within the MCC portfolio.

Replacement Considerations

DTA143ECA-TP is a parameter-equivalent non-automotive grade alternative. DTA143EKA-TP is obsolete; DTA143ECA-TP or DTA143ECAHE3-TP are recommended substitutes.