DTC144EL3-TP

Overview

The DTC144EL3-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single NPN bipolar junction transistor with internal biasing resistors in a compact SOT-523 surface-mount package. The device features a collector-emitter breakdown voltage of 50 V and a maximum continuous collector current of 100 mA. Internal resistor values are specified as R1 = 47 kOhms and R2 = 47 kOhms, providing a resistance ratio of 1. Key electrical characteristics include a DC current gain (hFE) minimum of 68 at 5 mA and 5 V, a saturation voltage of 300 mV max at specific test conditions, and a transition frequency of 250 MHz. Power dissipation is rated at 150 mW.

Feature Summary

• Integrates NPN transistor with dual biasing resistors for simplified circuit design
• Compact SOT-523 surface-mount package suitable for space-constrained applications
• High-speed operation capability with 250 MHz transition frequency
• Low saturation voltage for efficient switching performance

Applications

• General-purpose switching circuits
• Driver stages for logic interfaces
• Level shifting applications

Procurement Notes

Verify the exact suffix EL3 against the manufacturer's official datasheet to confirm pinout and electrical specifications, as variations exist within the DTC144 family. Ensure the component source provides valid traceability documentation. Confirm RoHS compliance status matches current regulatory requirements for the target market. Cross-reference the Mouser or DigiKey part numbers with the MCC catalog to ensure accurate ordering.

Selection Notes

Select this component when a pre-biased NPN solution is required in an SOT-523 footprint. Compare the 47k/47k resistor configuration against alternative ratios if different input impedance is needed. Verify that the 50 V rating and 100 mA current capacity meet the load requirements. Consider thermal management constraints given the 150 mW power dissipation limit in small packages.

Part Context

This part belongs to the DTC144 series of pre-biased transistors from Micro Commercial Components. Similar variants include the DTC144EE-TP and DTC144TUA-TP, which share similar electrical characteristics but may differ in packaging or specific resistor configurations. The series is designed to replace discrete resistor-transistor networks, reducing board space and assembly complexity.

Replacement Considerations

Direct substitutes may include other DTC144 series parts from MCC such as DTC144EE-TP. Check equivalent offerings from other manufacturers like ROHM or ON Semiconductor with matching NPN type, 50V rating, and SOT-523 package. Verify resistor values and hFE ranges match application requirements before substitution.