DTC143TE-TP

Overview

The DTC143TE-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single bias resistor (R1) within a compact SOT-523 surface-mount package. The device supports a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA, with a power dissipation rating of 150 mW at 25°C. The typical input resistance is 4.7 kΩ, and the DC current gain (hFE) ranges from 100 to 600 at IC=1mA and VCE=5V. Transition frequency reaches 250 MHz, while saturation voltage is limited to 0.3 V under specified conditions.

Feature Summary

• Built-in thin-film bias resistors enable inverter circuit configuration without external input components
• Complete isolation of internal resistors allows negative biasing of the input terminal
• Elimination of parasitic effects through integrated resistor design simplifies device operation

Applications

• Inverter circuits requiring simplified input configurations
• Switching applications utilizing pre-biased NPN transistor logic
• High-frequency signal processing up to 250 MHz transition frequency

Procurement Notes

Verify authenticity by purchasing directly from MCC or authorized distributors listed on their official website. Counterfeit parts pose significant risks; unauthorized sources lack traceability and quality assurance. Confirm RoHS compliance via the "TP" suffix designation. Ensure ordering quantities align with standard 3Kpcs/reel packaging specifications for production efficiency.

Selection Notes

Select this component when designing circuits requiring an NPN digital transistor with a single built-in base resistor. The SOT-523 package suits space-constrained surface-mount layouts. Verify that the 4.7 kΩ input resistance matches the required drive characteristics. Consider the 150 mW power dissipation limit relative to ambient temperature derating curves provided in the datasheet.

Part Context

This part belongs to the DTC143TE series of NPN digital transistors. The "TP" suffix indicates RoHS compliance and lead-free finish. It is distinct from variants like DTC143EE-TP which feature different resistor ratios. The device marking "03" identifies it visually on the package. It serves as a direct replacement for discrete resistor-transistor networks in switching applications.

Replacement Considerations

Direct substitutes include other NPN digital transistors with similar R1 values and SOT-523 packaging, such as those from ROHM Semiconductor (e.g., DTC143TE3HZGTL). Verify pinout compatibility and electrical parameters before substitution. Ensure the alternative device meets the same 50 V breakdown voltage and 100 mA current requirements.