DTA144EKA-TP

Overview

The DTA144EKA-TP is a pre-biased PNP bipolar junction transistor manufactured by Micro Commercial Components. It integrates internal bias resistors within an SOT-23-3L surface-mount package to simplify circuit design. Key electrical specifications include a maximum collector-emitter voltage of 50V, a continuous collector current of 100mA, and a power dissipation rating of 200mW. The device features a minimum DC current gain (hFE) of 68 at 5mA and 5V, with a typical input resistance of 47kOhms and a resistor ratio of 1. It supports a maximum operating frequency of 250MHz and functions reliably within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates built-in bias resistors to eliminate the need for external input components in inverter configurations.
• Provides high-speed switching capabilities suitable for applications requiring operation up to 250MHz.
• Offers robust thermal performance with a maximum junction temperature rating of +150°C.

Applications

• Inverter circuits
• Switching applications
• Logic interface circuits

Procurement Notes

Verify the specific suffix 'TP' confirms RoHS compliance and lead-free status as per manufacturer standards. Confirm the SOT-23-3L package designation matches the required footprint for PCB layout. Ensure the 50V VCEO and 100mA Ic ratings align with the target application's electrical stress requirements before finalizing component selection.

Selection Notes

Select this component when a compact PNP solution with integrated biasing is required to reduce board space and assembly steps. The 47kOhm input resistance value should be evaluated against the driving source impedance to ensure proper logic level triggering. Consider the 200mW power dissipation limit in conjunction with ambient temperature conditions to maintain safe operating junction temperatures during continuous operation.

Part Context

This part belongs to the DTA144 series of pre-biased transistors from Micro Commercial Components. These devices are designed to replace discrete resistor-transistor networks, offering a simplified alternative for digital switching tasks. The series provides various resistance combinations, with the EKA variant specifically utilizing a 47kOhm input resistor configuration for standard logic interfacing needs.

Replacement Considerations

Public confirmed substitute part numbers: DTA144EUA-TP, DTC144ECA-TP.