DTC144TE-TP

Overview

The DTC144TE-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC) in a SOT-523 surface-mount package. It integrates a single internal bias resistor (R1) with a typical value of 47 kΩ, eliminating the need for external input components. Key electrical specifications include a collector-emitter breakdown voltage (VCEO) of 50 V, a continuous collector current (IC) of 100 mA, and a maximum power dissipation (PC) of 150 mW at 25°C. The device features a transition frequency (fT) of 250 MHz and a minimum DC current gain (hFE) of 100. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Built-in thin-film bias resistors enable inverter circuit configuration without external input resistors.
• Resistors provide complete isolation to allow negative biasing of the input and minimize parasitic effects.
• Halogen-free 'Green' device compliant with RoHS standards.

Applications

• Inverter circuits
• Switching applications requiring simplified design
• General-purpose digital logic interfacing

Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors to ensure traceability and quality. Counterfeit parts pose significant risks; unauthorized sources do not receive warranty coverage. Confirm the specific ordering suffix matches the required packaging format, such as Tape & Reel quantities, before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN solution with integrated base resistance is required for space-constrained designs. The SOT-523 package offers a small footprint suitable for high-density PCB layouts. Ensure the application voltage does not exceed the 50 V collector-emitter rating and that thermal management accommodates the 150 mW power dissipation limit under operating conditions.

Part Context

This part belongs to the DTC144TE series of pre-biased transistors. The '-TP' suffix indicates the product is RoHS compliant and supplied in Tape & Reel packaging. It is designed to replace discrete resistor-transistor combinations, simplifying schematic design and reducing assembly steps for standard switching and logic applications.

Replacement Considerations

Direct replacements must match the NPN polarity, SOT-523 package, and 47 kΩ internal base resistor. Verify that substitute devices meet the 50 V VCEO and 100 mA IC requirements. Cross-reference datasheets for equivalent transition frequencies and saturation voltages to ensure circuit performance compatibility.

FAQ

What is the function of the internal resistor in the DTC144TE?

The internal resistor (R1) provides base biasing, allowing the transistor to function as an inverter or switch without requiring an external input resistor.

Can the DTC144TE handle negative input bias?

Yes, the built-in thin-film resistors are completely isolated, which allows for the negative biasing of the input terminal.

What is the maximum power dissipation of this device?

The maximum power dissipation is 150 mW at an ambient temperature of 25°C.