PUMH9/ZLH

Overview

The PUMH9/ZLH 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 features a maximum collector-emitter voltage (Vceo) of 50 V and a continuous collector current (Ic) of 100 mA. Internal resistor values include a base resistor (R1) of 10 kΩ and an emitter resistor (R2) of 47 kΩ. The component operates within a temperature range of -55°C to +150°C, with a maximum power dissipation of 300 mW. It is housed in a 6-TSSOP (SOT-363) package, suitable for high-density PCB layouts.

Feature Summary

• Integrates dual NPN transistors with fixed bias resistors to simplify circuit design
• Provides consistent DC current gain characteristics across operating conditions
• Utilizes a low-profile surface-mount package for space-constrained applications

Applications

• General-purpose switching circuits requiring integrated biasing
• Logic level translation interfaces
• Driver stages for small-signal amplification

Procurement Notes

Verify the exact suffix designation during procurement, as standard distributors typically list PUMH9 variants with suffixes like 115 or 135. Confirm that the ZLH suffix corresponds to the specific tape-and-reel packaging or regional variant intended for your assembly line. Cross-reference the manufacturer's latest ordering information to ensure compatibility with your bill of materials.

Selection Notes

Select this component when a dual NPN configuration with integrated biasing is required to reduce external component count. Ensure the 10 kΩ base resistance aligns with your drive source capabilities. Verify that the 50 V voltage rating exceeds the maximum circuit voltage under all operating conditions. Consider the 300 mW power dissipation limit relative to the expected thermal environment on the PCB.

Part Context

The PUMH9 belongs to Nexperia's family of digital transistors, which combine bipolar junction transistors with internal resistors. This series is designed to replace discrete resistor-transistor networks, saving board space and assembly time. The PUMH9 specifically denotes a dual NPN configuration, distinguishing it from PNP or complementary NPN/PNP variants within the same product line.

Replacement Considerations

Direct substitutes may include other dual NPN pre-biased transistors in SOT-363 packages from manufacturers such as ON Semiconductor or Diodes Inc. Verify pinout compatibility and electrical parameters before substitution. Alternative Nexperia part numbers with different suffixes, such as PUMH9,115 or PUMH9,135, may offer identical electrical performance with different packaging options.