PUMD4-QX

Overview

The PUMD4-QX is an NPN/PNP resistor-equipped transistor (RET) manufactured by Nexperia. It integrates dual transistors with built-in bias resistors in a compact SOT363 (SC-88/TSSOP-6) surface-mount package. The device features a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. Power dissipation is rated at 200 mW, with an operating temperature range from -65 °C to +150 °C. The typical input resistance is 10 kOhms, and the DC current gain (hFE) minimum is 30. This component is AEC-Q101 qualified for automotive applications.

Feature Summary

• Integrated bias resistors simplify circuit design and reduce component count
• Automotive qualification ensures reliability in harsh environments
• Compact SMD package minimizes PCB space requirements

Applications

• Low current peripheral driver circuits
• Replacement of general-purpose transistors in digital logic applications
• Control of IC inputs requiring level shifting or buffering

Procurement Notes

Verify the specific suffix 'QX' against the manufacturer's official datasheet to confirm packaging details and availability status. Ensure the orderable part number matches the required automotive grade specifications. Cross-reference the 12NC code for accurate inventory tracking. Confirm RoHS compliance documentation is available for regulatory adherence. Check for any recent product change notifications that may affect lead times or material composition.

Selection Notes

Select this component when space-constrained designs require integrated biasing for NPN/PNP pairs. Verify that the 10 kOhm typical input resistance aligns with the driving source impedance. Ensure the 50 V voltage rating exceeds the maximum circuit operating voltage. Consider the 200 mW power dissipation limit under worst-case thermal conditions. Confirm compatibility with standard reflow soldering profiles for the TSSOP-6 package.

Part Context

The PUMD4-QX belongs to Nexperia's family of resistor-equipped transistors designed for digital switching applications. It serves as the NPN/PNP complement to devices like the PUMH4 and PUMB4. These components replace discrete transistor-resistor networks, offering improved performance and reduced assembly costs. The Q-series designation indicates automotive-grade qualification under AEC-Q101 standards.

Replacement Considerations

Direct substitutes include the PUMD4 without the QX suffix if automotive qualification is not required. Other compatible RETs from different manufacturers must match the 50 V rating, 100 mA current, and SOT363 package dimensions. Verify pinout compatibility before substitution.