PUMT1-QX

Overview

The PUMT1-QX is a unidirectional transient voltage suppression (TVS) diode manufactured by Nexperia USA Inc. Designed for surface-mount applications, it utilizes the SOD-128 package to provide robust protection against electrostatic discharge and fast transient events. The device features a working voltage of 8.5 V, with a breakdown voltage of 9.92 V and a maximum clamping voltage of 14.4 V under specified test conditions. It supports a peak pulse current of 41.7 A and handles a peak pulse power dissipation of 600 W. The component offers ESD protection ratings of 8 kV for contact discharge and 8 kV for air gap discharge, ensuring reliable performance in sensitive electronic circuits.

Feature Summary

• Provides effective protection against electrostatic discharge and fast transient voltage events
• Utilizes a compact SOD-128 surface-mount package for space-constrained designs
• Features low capacitance characteristics suitable for high-speed data line protection

Applications

• Protection of I/O ports in automotive electronics
• Guarding USB interfaces against ESD damage
• Shielding high-speed data lines from transient overvoltages

Procurement Notes

Verify the specific ordering suffix and tape-and-reel specifications directly with authorized distributors or Nexperia sales representatives. Confirm that the component meets the required AEC-Q101 qualification standards for your specific automotive application environment before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring unidirectional TVS protection with an 8.5 V operating voltage. Ensure the peak pulse current capability of 41.7 A aligns with the expected transient energy levels in your system. Verify that the SOD-128 footprint matches your PCB layout constraints and thermal management requirements.

Part Context

This part belongs to Nexperia's PUMT series of unidirectional TVS diodes, which are engineered for protecting sensitive semiconductor devices from voltage spikes. The QX suffix typically indicates automotive-grade qualification, making it suitable for rigorous environmental conditions found in vehicle electronics systems.

Replacement Considerations

Check for direct pin-compatible alternatives within the same Nexperia family that share identical electrical parameters and package dimensions. Verify that any substitute component maintains the same AEC-Q101 reliability rating and clamping voltage characteristics to ensure circuit compatibility.