ADTA144ECAQ-13

Overview

The ADTA144ECAQ-13 is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction with built-in biasing resistors where R1 equals R2, both nominally 47 kOhms. The device operates with a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. It has a power dissipation rating of 310 mW at +25°C ambient temperature. The transition frequency is typically 250 MHz, and the minimum DC current gain is 68. It is housed in an SOT-23 package and is qualified to AEC-Q101 standards for automotive applications.

Feature Summary

• Epitaxial planar die construction with integrated biasing resistors
• Qualified to AEC-Q101 standards for high reliability
• Totally lead-free and fully RoHS compliant
• Halogen and antimony free green device

Applications

• Automotive electronic circuits requiring AEC-Q101 qualification
• General-purpose switching applications utilizing built-in biasing
• Surface mount assembly on FR-4 printed circuit boards

Procurement Notes

Verify the specific ordering suffix '-13' corresponds to the 10,000 units per reel packaging configuration as documented in the manufacturer's ordering information. Confirm that the '1Z4' marking code matches the required identification for this component revision. Ensure compliance with PPAP requirements if mandated by the specific automotive supply chain protocol.

Selection Notes

Select this component when a PNP digital transistor with equal base and emitter biasing resistors is required. The SOT-23 package suits space-constrained designs. Verify that the -50 V collector-emitter voltage and -100 mA current ratings align with the target circuit parameters. Consider the 310 mW power dissipation limit and thermal resistance characteristics for proper heat management.

Part Context

This part belongs to the ADTA144 series of pre-biased transistors from Diodes Incorporated. The 'E' in the model number indicates the SOT-23 package type, while the 'Q' suffix denotes AEC-Q101 automotive qualification. The '-13' suffix specifies the tape and reel quantity of 10,000 units. It is functionally similar to other parts in the DDTA/ADTA families but distinguished by its specific resistor values and package.

Replacement Considerations

Direct replacements within the same family include ADTA144ECAQ-7, which shares identical electrical specifications but comes in a 3,000-unit reel size. Other equivalent parts may exist within the broader ADTA series, provided they match the PNP polarity, 47kΩ resistor ratio, and SOT-23 footprint.