18014115401L

Overview

The Würth Elektronik 18014115401L is a WPME-CDIS series capacitive digital isolator housed in a 16-SOIC package. It features four independent channels with a 3/1 input/output configuration, providing galvanic isolation rated at 5000Vrms. The device supports a maximum data rate of 150Mbps and offers a typical common-mode transient immunity (CMTI) of 150kV/µs. Designed for surface-mount PCB assembly, it operates within standard industrial temperature ranges and utilizes ceramic-based isolation technology to ensure signal integrity across isolated boundaries.

Feature Summary

• Provides galvanic isolation between circuits using capacitive coupling technology
• Features four independent channels configured as three inputs and one output
• Delivers high-speed data transmission capability up to 150Mbps
• Ensures robust noise rejection with high common-mode transient immunity

Applications

• Industrial communication bus isolation
• Medical equipment signal isolation
• Power supply control loop isolation

Procurement Notes

Verify the specific suffix and package variant against the official datasheet before ordering. Confirm that the 5000Vrms isolation rating meets your system safety requirements. Check for RoHS compliance status and lead time availability through authorized distributors. Ensure the SOIC-16 footprint matches your PCB layout constraints.

Selection Notes

Select this component when high-speed SPI or similar digital signals require isolation. The 3/1 channel count suits applications needing multiple input lines isolated to a single output path. Consider the 150Mbps limit for bandwidth requirements. The SOIC-16 package offers a balance of pin count and board space efficiency for dense designs.

Part Context

This part belongs to the Würth Elektronik WPME-CDIS family of capacitive digital isolators. These devices are engineered to replace traditional optocouplers in modern high-speed applications. The series emphasizes low power consumption and high reliability compared to magnetic or optical alternatives.

Replacement Considerations

Check for direct cross-reference parts from other manufacturers offering similar 4-channel 5kVrms isolation. Verify pinout compatibility if substituting with different package types. Ensure equivalent CMTI and data rate specifications are met by any alternative component.