PUMH1/ZLX

Overview

The Nexperia PUMH1/ZLX is a dual NPN pre-biased transistor array housed in a compact SOT-363 (SC-88) surface-mount package. It integrates two NPN transistors with individual base resistors, simplifying circuit design by reducing component count and board space. The device features a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. With a maximum power dissipation of 300 mW and an operating temperature range up to +150 °C, it supports reliable performance in dense electronic assemblies requiring efficient signal switching or level translation.

Feature Summary

• Integrates two NPN transistors with built-in base resistors for simplified biasing
• Compact SOT-363 surface-mount package minimizes PCB footprint
• High thermal stability with maximum junction temperature of +150 °C
• Designed for low-voltage digital switching and logic interface applications

Applications

• Digital signal buffering and level shifting in portable devices
• Logic interface circuits between microcontrollers and peripheral components
• Switching applications in consumer electronics and automotive infotainment systems

Procurement Notes

Verify the exact suffix ZLX against official Nexperia documentation to confirm tape-and-reel specifications and moisture sensitivity level. Ensure compatibility with automated pick-and-place equipment using standard 8 mm reel dimensions. Cross-reference the full part number with distributor databases to confirm availability and lead times prior to procurement planning.

Selection Notes

Select this component when space-constrained designs require dual NPN switching with integrated biasing. Compare base resistance values against other PUMH series variants to match specific drive requirements. Confirm that the 50 V rating and 100 mA current capacity align with the target application's electrical loads and switching frequencies.

Part Context

The PUMH1 belongs to Nexperia’s extensive portfolio of pre-biased transistor arrays, which combine discrete transistors with internal resistors to reduce assembly complexity. This series is widely used in mobile phones, laptops, and automotive electronics where miniaturization and reliability are critical. The SOT-363 package is a standard industry form factor for dual transistor solutions.

Replacement Considerations

Direct substitutes include other Nexperia PUMH series parts with identical pinout and similar electrical characteristics, such as PUMH1,115. Verify resistor values and hFE ranges before substitution. Alternative manufacturers offer compatible dual NPN pre-biased transistors in SC-88 packages, but parameter matching is essential.