PUMB17/ZLX

Overview

The PUMB17/ZLX is a PNP/PNP resistor-equipped transistor housed in an SOT363 (SC-88) plastic surface-mounted package. It integrates two PNP transistors with built-in bias resistors, specifically R1 at 47 kΩ and R2 at 22 kΩ. The device supports a collector-emitter voltage of -50 V and a DC output current of -100 mA per transistor. Total power dissipation is rated at 300 mW at 25 °C ambient temperature. Key electrical characteristics include a typical DC current gain of 60 at -5 mA collector current and a saturation voltage of -150 mV at -10 mA.

Feature Summary

• Integrates dual PNP transistors with built-in bias resistors to simplify circuit design
• Reduces component count and pick-and-place costs by replacing discrete components
• Provides high-density packaging suitable for space-constrained applications

Applications

• Low current peripheral driver
• Control of IC inputs
• Replacement of general-purpose transistors in digital applications

Procurement Notes

Verify the specific suffix ZLX against official Nexperia ordering information to confirm tape and reel specifications or marking codes. Ensure compatibility with standard reflow soldering methods as specified in the datasheet. Confirm that the SOT363 package dimensions align with the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a compact solution for driving low-current loads or interfacing with IC inputs is required. The integrated bias resistors eliminate the need for external base resistors, reducing board space. Verify that the -50 V collector-emitter voltage rating meets the system's maximum operating conditions and that the 300 mW total power dissipation is sufficient for the thermal environment.

Part Context

The PUMB17 belongs to the PEMB17/PUMB17 family of PNP/PNP resistor-equipped transistors. While the PEMB17 variant utilizes an SOT666 package, the PUMB17 uses the smaller SOT363 (SC-88) package. Both share identical electrical characteristics, including the 47 kΩ input resistor and 22 kΩ feedback resistor configuration, allowing for pin-compatible design flexibility based on available board space.

Replacement Considerations

Publicly confirmed substitute part numbers include PUMD17 and PUMH17.