18014015401L

Overview

The Würth Elektronik 18014015401L is a WPME-CDIS series digital isolator featuring four independent channels with a 4/0 logic configuration. It operates within a supply voltage range of 2.375 V to 5.5 V and supports data rates up to 150 Mbps. The device provides 5000 Vrms isolation voltage and exhibits a typical common-mode transient immunity of 150 kV/µs. Packaged in a 16-SOIC (0.295 inch width) surface-mount format, it functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides capacitive isolation between primary and secondary circuit sides
• Features default low output state for safety-critical applications
• Supports high-speed SPI communication protocols
• Offers robust common-mode transient immunity

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Automotive electronic modules
• Power supply feedback loops

Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with design requirements. Confirm insulation ratings and thermal performance specifications match the target application environment before finalizing procurement decisions.

Selection Notes

Select this component when four isolated channels are required for high-speed data transmission. Ensure the system voltage aligns with the 2.375 V to 5.5 V operating range. Consider the SOIC-16 footprint constraints and verify that the 150 Mbps data rate meets the interface speed requirements.

Part Context

This part belongs to the WPME-CDIS family of capacitive digital isolators from Würth Elektronik. These devices are designed to replace traditional optocouplers in modern designs, offering superior performance in terms of speed, power consumption, and reliability while maintaining strict safety isolation standards.

Replacement Considerations

Consult official manufacturer substitution guides for verified equivalents. Cross-reference pinouts and electrical characteristics carefully to ensure functional compatibility without redesigning the PCB layout.

FAQ

What is the typical common-mode transient immunity of the 18014015401L?

The device typically offers a common-mode transient immunity of 150 kV/µs.

Does the 18014015401L support SPI interfaces?

Yes, it is specified as an SPI digital isolator suitable for such high-speed serial communications.

What is the maximum operating temperature for this isolator?

The maximum operating temperature is +125°C.