PUMX1,115

Overview

The Nexperia PUMX1,115 is a dual NPN resistor-equipped transistor (RET) housed in a SOT363 surface-mount package. It integrates two independent NPN transistors with biasing resistors to simplify circuit design and reduce component count. The device supports a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA per channel. It operates within a temperature range of -55°C to +150°C and features a typical input resistance of 22 kΩ.

Feature Summary

• Dual NPN configuration with integrated biasing resistors for simplified interface logic
• Compact SOT363 plastic surface-mount package for high-density PCB layouts
• High thermal stability supporting operation up to 150°C junction temperature

Applications

• Logic level shifting between different voltage domains
• Switching applications in portable consumer electronics
• Interface circuits for microcontrollers and digital logic gates

Procurement Notes

Verify the specific suffix '115' corresponds to the standard tape-and-reel packaging format required by automated assembly lines. Confirm that the SOT363 footprint matches the target PCB silkscreen and copper pad dimensions. Ensure compliance with RoHS directives if operating in regulated markets. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when space constraints necessitate a dual-transistor solution with built-in base resistors. The 22 kΩ input resistance offers a balance between drive current requirements and power consumption. Consider the 50 V rating for general-purpose low-voltage switching rather than high-voltage industrial applications. Evaluate the SOT363 thermal dissipation capabilities against the expected duty cycle and ambient temperature conditions.

Part Context

This part belongs to Nexperia's PUM series of NPN resistor-equipped transistors. It serves as a compact alternative to discrete transistor-resistor combinations. The SOT363 package is widely used in mobile phones and handheld devices where board real estate is limited. It complements other RET families like PUMC and PUMD which offer different pin configurations or resistance values.

Replacement Considerations

Direct substitutes include other dual NPN RETs in SOT363 packages such as the PUMC11 or PUMD11 from compatible manufacturers. Verify that replacement parts maintain identical pin assignments and electrical characteristics, specifically the 22 kΩ input resistance and 50 V voltage ratings.