DTC144EE-TP

Overview

The DTC144EE-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC) in a SOT-523 surface-mount package. It integrates internal bias resistors, specifically R1 at 47 kOhms and R2 at 47 kOhms with a ratio of 1, to simplify circuit design. Key electrical parameters include a maximum supply voltage (VCC) of 50 V, a continuous collector current (Io) of 100 mA, and a power dissipation (PD) of 150 mW. The device features a minimum DC current gain (GI) of 68 and a transition frequency (fT) of 250 MHz. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Built-in thin-film bias resistors enable direct configuration of inverter circuits without external input components.
• Complete isolation of bias resistors allows for negative biasing of the input while eliminating parasitic effects.
• Halogen-free 'Green' construction with epoxy meeting UL 94 V-0 flammability ratings.

Applications

• Inverter circuits requiring simplified input configurations
• Switching applications where only On/Off conditions need to be set
• General-purpose digital logic interfacing

Procurement Notes

Verify component authenticity by purchasing directly from Micro Commercial Components or their authorized distributors listed on the official website. Unauthorized sources lack traceability and quality assurance. Confirm RoHS compliance via the 'P' suffix designation and ensure storage conditions adhere to Moisture Sensitivity Level 1 standards to maintain device integrity prior to assembly.

Selection Notes

Select this component when designing NPN switching or inverter circuits that require integrated base biasing. The 47 kOhm resistor values are suitable for standard logic levels. Ensure the application stays within the 150 mW power dissipation limit and operates within the specified temperature range. Verify that the SOT-523 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the DTC144 series of pre-biased NPN transistors. It is designed to replace discrete resistor-transistor combinations, reducing board space and assembly complexity. The device is commonly used in consumer electronics and industrial control systems where compact digital switching solutions are required.

Replacement Considerations

Direct substitutes include other NPN digital transistors with similar 47k/47k resistor ratios and SOT-523 packaging, such as the DTC144EUA-TP (SOT-323 package). Verify pinout compatibility and electrical ratings before substitution.