ADTA144WCAQ-7

Single, Pre-Biased Bipolar Transistors Overview

The ADTA144WCAQ-7 is a PNP pre-biased small-signal surface-mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and built-in biasing resistors (R1=47kΩ, R2=22kΩ) within a compact SOT-23 package. The device is AEC-Q101 qualified for automotive applications and operates with a supply voltage of -50V and a continuous collector current of -100mA. Key electrical parameters include a DC current gain (hFE) minimum of 56 at -10mA, a transition frequency (fT) of 250MHz, and a power dissipation rating of 310mW. It functions reliably across a temperature range of -55°C to +150°C.

Single, Pre-Biased Bipolar Transistors Feature Summary

• Built-in biasing resistors simplify circuit design by reducing component count and board space requirements.
• AEC-Q101 qualification ensures suitability for automotive applications requiring specific change control standards.
• Totally lead-free and fully RoHS compliant, meeting environmental directives without halogen or antimony.

Single, Pre-Biased Bipolar Transistors Applications

• Automotive electronic systems requiring qualified discrete components
• General-purpose switching applications in consumer electronics
• Driver circuits for low-power loads

Single, Pre-Biased Bipolar Transistors Procurement Notes

Verify the complete part number including the suffix to confirm packaging quantity and reel specifications. Confirm that the ordering suffix matches the required tape width and carrier type for your assembly line equipment. Ensure compliance with the specified RoHS and halogen-free definitions during procurement validation.

Single, Pre-Biased Bipolar Transistors Selection Notes

Select this component when a PNP configuration with integrated base resistance is required for high-speed switching. The SOT-23 package is suitable for space-constrained designs. Verify that the -50V supply voltage and -100mA current limits align with the target application's operational requirements.

Single, Pre-Biased Bipolar Transistors Part Context

This part belongs to the ADTA144 series of pre-biased transistors from Diodes Incorporated. It is specifically designed for automotive use under the AEC-Q101 standard, distinguishing it from general-purpose variants. The 'Q' suffix indicates automotive qualification, while '-7' denotes the 3,000-unit reel packaging format.

Single, Pre-Biased Bipolar Transistors Replacement Considerations

Direct replacements must match the PNP polarity, SOT-23 package, and internal resistor values (47kΩ/22kΩ). Verify that any substitute also meets AEC-Q101 requirements if used in automotive contexts. Check thermal resistance and maximum voltage ratings to ensure compatibility.