18012115411H

Overview

The Würth Elektronik 18012115411H is a two-channel capacitive digital isolator from the WPME-CDIS series. It provides galvanic isolation between primary and secondary circuit sides with a basic isolation rating of 3750 VRMS for 60 seconds. The device supports an input voltage range of 2.375 V to 5.5 V and achieves data rates up to 150 Mbps. It features a typical common-mode transient immunity of 150 kV/µs. Packaged in an 8-SOIC footprint, it is designed for robust signal transmission in electrically noisy environments.

Feature Summary

• Capacitive isolation technology ensures reliable signal transfer across galvanic barriers
• High-speed data transmission capability supporting rates up to 150 Mbps
• Robust noise immunity with high common-mode transient rejection
• Wide operating supply voltage compatibility

Applications

• Industrial automation communication interfaces
• Medical equipment signal isolation
• Automotive electronic control units
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'H' against the manufacturer's current datasheet to confirm package dimensions and tape/reel specifications. Ensure the procurement documentation explicitly references the WPME-CDIS series to distinguish this component from other Würth isolators. Confirm RoHS compliance status through official certification documents prior to finalizing orders.

Selection Notes

Select this component when high-speed digital isolation is required alongside strong noise immunity. The 150 Mbps rate suits applications needing rapid data exchange. Verify that the system voltage falls within the 2.375 V to 5.5 V range. Consider the 8-SOIC package size for PCB layout constraints compared to wider packages.

Part Context

This part belongs to the Würth Elektronik WPME-CDIS family of capacitive digital isolators. These devices utilize proprietary capacitive coupling technology to transmit signals across isolation barriers without magnetic components. The series is engineered for applications demanding high reliability and fast response times in harsh electrical environments.

Replacement Considerations

Check for direct pin-compatible alternatives within the same WPME-CDIS series. Verify if lower speed variants meet the application requirements. Ensure any substitute maintains the 3750 VRMS isolation rating and similar CMTI performance.