PDTA144EQB-QZ

Overview

The PDTA144EQB-Q is a PNP resistor-equipped transistor from Nexperia, housed in an ultra-small DFN1110D-3 (SOT8015) leadless SMD package with side-wettable flanks. It features built-in bias resistors of 47 kΩ each (R1 and R2), providing a typical ratio of 1. The device supports a collector-emitter voltage (VCEO) of -50 V and a continuous output current (IO) of -100 mA. Total power dissipation reaches 340 mW on a standard 35 µm copper FR4 PCB. Qualified under AEC-Q101 for automotive use, it operates within a junction temperature range up to 150 °C.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• Ultra-thin 0.5 mm package height suitable for high-density layouts
• Side-wettable flanks enable Automatic Optical Inspection (AOI) of solder joints
• Qualified according to AEC-Q101 for automotive applications

Applications

• Digital switching and amplification circuits
• Controlling IC inputs
• Switching loads
• Cost-saving alternative to BC857-Q series in digital applications

Procurement Notes

Verify the specific ordering suffix matches the required reel quantity and tape configuration. Confirm that the DFN1110D-3 footprint aligns with the manufacturer's recommended stencil thickness and land pattern specifications. Ensure compliance with RoHS directives and check for any regional distribution restrictions before finalizing procurement orders.

Selection Notes

Select this component when space constraints require an extremely thin profile while maintaining robust thermal performance via side-wettable flanks. The 47 kΩ internal resistors are optimal for driving moderate base currents without external components. Consider the -50 V rating and -100 mA current limit to ensure adequate headroom for the intended load switching requirements.

Part Context

This part belongs to the PDTA143/114/124/144EQB-Q series, which shares the same SOT8015 package but varies in internal resistor values. The PDTA144 variant specifically utilizes 47 kΩ resistors for both R1 and R2, distinguishing it from lower resistance options like the PDTA143 (4.7 kΩ). All series members share identical pinning and physical dimensions.

Replacement Considerations

Direct replacements include other PDTA144 variants in different packages such as PDTA144WT or PDTA144U if board space permits. For equivalent functionality in the same package, verify availability of the PDTA144EQB-Q from authorized distributors. Cross-reference with BC857-Q series only if external biasing is acceptable.