SZNZL7V5AXV3T1G

Overview

The SZNZL7V5AXV3T1G is a dual-channel, unidirectional transient voltage suppression diode manufactured by onsemi. It features a common anode configuration within an SC-89 (SOT-490-3) surface-mount package. The device provides electrostatic discharge protection with a breakdown voltage of 7.12 V and a reverse standoff voltage of 5 V. It handles a peak pulse current of 5.7 A at 10/1000 µs, resulting in a maximum clamping voltage of 13.5 V. The component operates reliably across a temperature range from -55 °C to +150 °C.

Feature Summary

• Dual monolithic silicon junction design for protecting two separate signal lines using a single package
• Common anode architecture optimizes printed circuit board space utilization
• High thermal stability supporting operation up to 150 °C

Applications

• Protection of data lines in computers and business machines
• Electrostatic discharge shielding for printers and communication systems
• ESD mitigation in medical equipment interfaces

Procurement Notes

Verify the specific suffix 'SZ' against official manufacturer documentation to confirm its exact impact on binning or testing parameters. Ensure the selected package matches the SC-89 footprint requirements for the target assembly process. Cross-reference the datasheet revision date to validate all electrical specifications before finalizing the bill of materials.

Selection Notes

Select this component when dual-line ESD protection is required in space-constrained designs. The common anode topology simplifies routing compared to discrete solutions. Verify that the 5 V operating voltage aligns with the protected circuit's nominal levels. Confirm that the 13.5 V clamping voltage remains below the tolerance limits of the downstream sensitive components.

Part Context

This part belongs to the NZL7V5AXV3 series of ESD suppressors designed for high-density applications. The series utilizes a compact SC-89 package to minimize board area while maintaining robust protection capabilities. It serves as a specialized solution for safeguarding multiple I/O lines in portable and industrial electronics where space efficiency is critical.

Replacement Considerations

Direct substitutes include other dual-channel TVS diodes in the SC-89 package with matching electrical ratings. Verify pinout compatibility and clamping voltage characteristics before substitution. Alternative packages may require schematic and layout modifications.