DTA144ECAHE3-TP

Overview

The DTA144ECAHE3-TP is a PNP digital transistor manufactured by Micro Commercial Components (MCC). It integrates a single PNP bipolar junction transistor with pre-biased resistors in an SST3 package. Key electrical parameters include a collector-emitter breakdown voltage of 50 V, a continuous collector current of 100 mA, and a transition frequency of 250 MHz. The device features typical base resistor (R1) and emitter resistor (R2) values of 47 kOhms each. It operates within a temperature range of -55°C to +150°C and has a maximum power dissipation of 200 mW.

Feature Summary

• Integrates a PNP transistor with dual pre-biased resistors for simplified circuit design
• Qualified under AEC-Q101 standards for automotive reliability requirements
• Provides high DC current gain characteristics at low drive currents
• Utilizes compact surface-mount packaging for space-constrained applications

Applications

• Automotive electronic control units requiring qualified components
• General-purpose switching circuits in consumer electronics
• Driver stages for relays and small motors
• Logic level translation interfaces between microcontrollers and peripherals

Procurement Notes

Verify the specific suffix HE3 indicates halogen-free compliance and AEC-Q101 qualification status against the manufacturer's latest documentation. Confirm the SST3 package outline dimensions match your PCB footprint requirements. Ensure the ordering part number matches the exact resistance values and polarity specified in your schematic to avoid functional mismatches during assembly.

Selection Notes

Select this component when a PNP configuration with integrated biasing is required for automotive or industrial environments. Compare the 47 kOhm internal resistor values against external biasing needs to ensure proper saturation and cutoff behavior. Verify that the 50 V voltage rating exceeds the maximum circuit operating voltage with adequate margin. Consider the 200 mW power dissipation limit relative to the expected thermal environment.

Part Context

This part belongs to the DTC/DTA144 series of pre-biased transistors from MCC. The 'E' designation typically refers to the specific resistor ratio, while 'CA' denotes the SOT-23 compatible package type. The 'HE3' suffix signifies environmental compliance and automotive qualification. It serves as a direct replacement for discrete resistor-transistor networks in signal switching applications.

Replacement Considerations

• DTA144ECA-TP
• DDTA144ECA-7-F
• DTA144ECAQ-13-F

FAQ

What are the internal resistor values for the DTA144ECAHE3-TP?

The device includes two internal resistors: R1 (base resistor) and R2 (emitter resistor), both typically valued at 47 kOhms.

Is the DTA144ECAHE3-TP suitable for automotive applications?

Yes, the HE3 suffix indicates that this component is qualified under the AEC-Q101 standard for automotive grade reliability.

What is the maximum collector current for this device?

The maximum continuous collector current (Ic) is rated at 100 mA.