18012015411L

Overview

The Würth Elektronik 18012015411L is a 2-channel digital isolator from the WPME-CDIS series, designed for CAN bus applications. It features capacitive isolation technology providing 3750Vrms isolation voltage and a typical common-mode transient immunity (CMTI) of 150kV/µs. The device supports data rates up to 150Mbps with a propagation delay of 15ns. Packaged in an 8-SOIC footprint (3.90mm width), it operates with default low output state and is suitable for harsh electromagnetic environments requiring robust signal integrity.

Feature Summary

• Capacitive coupling technology ensures reliable isolation between primary and secondary sides
• High common-mode transient immunity protects against fast voltage spikes
• Unidirectional channel configuration simplifies circuit design for specific signal paths

Applications

• CAN bus communication systems
• Industrial automation control networks
• Automotive electronic modules

Procurement Notes

Verify the specific suffix and package variant matches the design requirement before ordering. Confirm that the 3750Vrms isolation rating aligns with safety standards for the target application. Ensure the 150Mbps data rate meets system timing constraints. Check for RoHS compliance documentation if required by procurement policy.

Selection Notes

Select this component when high CMTI is critical for noise immunity in electrically noisy environments. The unidirectional nature requires careful signal flow planning compared to bidirectional alternatives. Consider the SOIC-8NB package size for PCB layout constraints. Validate that the default low output state fits the idle logic requirements of the connected microcontroller or transceiver.

Part Context

This part belongs to Würth Elektronik's WPME-CDIS family of digital isolators. These devices utilize advanced capacitive isolation to replace traditional magnetic couplers, offering smaller form factors and higher reliability. The series is engineered for automotive and industrial sectors where long-term stability and high-speed data transmission are mandatory.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing pinouts and isolation ratings if considering alternative manufacturers.