PUMH9/ZLZ

Overview

The PUMH9/ZLZ is a dual NPN pre-biased transistor array manufactured by Nexperia USA Inc. It integrates two NPN bipolar junction transistors with built-in bias resistors in a compact surface-mount package. The device supports a maximum collector-emitter voltage of 50V and a continuous collector current of 100mA, with a total power dissipation rating of 300mW. Internal resistor values are specified as 10 kΩ for the base (R1) and 47 kΩ for the emitter (R2). The component features a minimum DC current gain (hFE) of 100 at 5mA and 5V, and a maximum saturation voltage of 100mV at specific test conditions. It is housed in a 6-TSSOP (SC-88/SOT-363) package.

Feature Summary

• Integrates two NPN transistors with fixed internal bias resistors to simplify circuit design.
• Provides high DC current gain and low saturation voltage for efficient switching applications.
• Utilizes a compact 6-pin surface-mount package suitable for space-constrained designs.

Applications

• General-purpose switching circuits requiring integrated biasing.
• Driver stages for logic interfaces and signal conditioning.
• Low-power digital logic buffer implementations.

Procurement Notes

Verify the exact suffix ZLZ against official Nexperia documentation to confirm packaging or tape-and-reel specifications. Standard distributors may list this under the base PUMH9 series; ensure the ordering code matches the required reel quantity and handling format. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement.

Selection Notes

Select this component when a dual NPN configuration with fixed bias resistors is required to reduce external component count. Ensure the 10k/47k resistor ratio aligns with the target input impedance and drive current requirements. Verify that the 50V voltage rating and 100mA current limit exceed the maximum operating conditions of the application circuit.

Part Context

The PUMH9 belongs to Nexperia's family of pre-biased transistor arrays designed to replace discrete resistor-transistor networks. These devices consolidate multiple components into a single footprint, improving assembly efficiency and reducing board space. The ZLZ suffix typically denotes specific packaging or taping variations within the standard PUMH9 product line.

Replacement Considerations

Direct substitutes include other dual NPN pre-biased transistors in SOT-363 packages with similar electrical characteristics, such as the BC847DQ or equivalent Nexperia parts like PUMH7 or PUMH10 series variants, provided resistor values and pinouts are compatible.