DTC143ECAHE3-TP

Overview

The DTC143ECAHE3-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single NPN epitaxial planar silicon transistor with built-in biasing resistors in a surface-mount SOT-23 package. Key electrical parameters include a collector-emitter breakdown voltage of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The device features typical base resistor R1 and emitter resistor R2 values of 4.7 kOhms each, resulting in a resistance ratio of 1. It operates within a temperature range of -55°C to +150°C and meets RoHS standards.

Feature Summary

• Integrates NPN transistor with dual built-in biasing resistors for simplified circuit design
• Utilizes epitaxial planar die construction for reliable performance
• Available in compact SOT-23 surface-mount package

Applications

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

Procurement Notes

Verify the specific suffix HE3 against official MCC documentation to confirm lead-free compliance and halogen-free status. Confirm that the TP designation corresponds to the correct tape and reel packaging configuration as specified in the manufacturer's datasheet before finalizing procurement orders.

Selection Notes

Select this component when an NPN digital transistor with a 50V rating and 100mA current capacity is required. Ensure the application demands a 4.7kOhm input resistance configuration. Verify that the SOT-23 footprint aligns with the PCB layout constraints and that the thermal management supports the 200mW power dissipation limit.

Part Context

This part belongs to the DTC143 series of digital transistors from Micro Commercial Components. It serves as a complementary or alternative option to other variants within the same family, distinguished by its specific pinout configuration and internal resistor network designed for standard logic interface applications.

Replacement Considerations

Direct substitutes include DTC143ECA-TP and DTC143ECA-HF. Verify pin compatibility and electrical ratings match exactly. Cross-reference with DTC143ZUAHE3-TP if AEC-Q101 automotive qualification is required, noting potential differences in hFE specifications.