DTC143ECA-TP

Overview

The DTC143ECA-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC) in a SOT-23 surface-mount package. It integrates built-in biasing resistors, specifically R1 and R2, both with a typical value of 4.7 kΩ and a resistance ratio of 1. The device features a supply voltage rating of 50 V, a collector current capacity of 100 mA, and a power dissipation limit of 200 mW at 25°C. Key electrical characteristics include a transition frequency of 250 MHz, a minimum DC current gain of 20, and a maximum input voltage of 30 V. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated biasing resistors eliminate external resistor requirements
• Halogen-free 'Green' device compliant with environmental standards
• Moisture sensitivity level 1 for robust storage handling

Applications

• General-purpose switching applications
• Driver circuits for relays and solenoids
• Logic level translation interfaces
• Inverter circuits requiring simplified bias networks

Procurement Notes

Verify authenticity through authorized MCC distributors or direct procurement to avoid counterfeit components. Confirm the -TP suffix indicates RoHS compliance and tape-and-reel packaging containing 3000 pieces per reel. Ensure storage conditions adhere to Moisture Sensitivity Level 1 guidelines prior to soldering.

Selection Notes

Select this component when an NPN configuration with integrated 4.7 kΩ base and emitter resistors is required. The 100 mA collector current and 50 V breakdown voltage suit low-power switching tasks. Consider the 250 MHz transition frequency for high-speed logic applications where minimal external biasing components are desired.

Part Context

This part belongs to the DTC143 series of pre-biased transistors from Micro Commercial Components. The ECA designation specifies the NPN polarity and the specific 4.7 kΩ / 4.7 kΩ resistor network configuration. The -TP suffix denotes RoHS-compliant packaging in tape-and-reel format for automated assembly processes.

Replacement Considerations

Compatible substitutes include other NPN digital transistors with identical pinouts and similar resistor values, such as the DTC143E from alternative manufacturers. Verify that replacement parts match the 50 V Vceo, 100 mA Ic, and SOT-23 package dimensions to ensure mechanical and electrical compatibility.