DTC143XCA-TP

Overview

The DTC143XCA-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single NPN bipolar junction transistor with a base bias resistor in a compact SOT-23 surface-mount package. The device features a collector-emitter maximum voltage (VCEO) of 50 V and a continuous collector current rating of 100 mA. Key electrical parameters include a DC current gain (hFE) of at least 100 at 1 mA and 5 V, and a saturation voltage of 300 mV at 250 µA base current and 5 mA collector current. The component operates within a temperature range of -55°C to +150°C and has a power dissipation capacity of 200 mW.

Feature Summary

• Integrates an NPN transistor with a pre-biased base resistor for simplified circuit design
• Provides high switching speed with a transition frequency of 250 MHz
• Offers low saturation voltage to minimize power loss during conduction

Applications

• General-purpose switching applications in consumer electronics
• Driver circuits for small-signal loads
• Logic level translation and interface buffering

Procurement Notes

Verify the specific datasheet version for the DTC143XCA-TP prior to ordering, as parameter tolerances may vary between revisions. Confirm that the SOT-23 package dimensions align with your PCB footprint requirements. Ensure that the thermal management strategy accounts for the 200 mW power dissipation limit under worst-case operating conditions to maintain reliability.

Selection Notes

Select the DTC143XCA-TP when a compact NPN solution with integrated biasing is required for space-constrained designs. Compare its 250 MHz transition frequency against higher-speed alternatives if driving fast digital signals. Evaluate the 4.7 kOhm internal base resistance value to ensure it provides adequate drive current for the intended load without excessive base drive requirements from the preceding logic stage.

Part Context

This component belongs to the DTC143 series of pre-biased transistors from Micro Commercial Components. It shares the same functional topology as variants like the DTC143TCA-TP but may differ in specific manufacturing lot characteristics or packaging details. The 'TP' suffix typically denotes tape and reel packaging options available through distributors.

Replacement Considerations

Direct substitutes include other NPN digital transistors with similar 50V ratings and SOT-23 packages, such as the DTC143TCA-TP. Verify pinout compatibility and electrical parameter overlaps before swapping components in existing designs.