14230434500

Overview

The Würth Elektronik part number 14230434500 is a Triac and SCR output optocoupler belonging to the WL-OCTR series. It features a Zero Crossing (ZC) output configuration designed for precise AC load switching applications. The device utilizes a Surface Mount Package (SOP) with four pins, facilitating automated assembly on printed circuit boards. Key electrical specifications include an isolation voltage of 3.75 kVrms, ensuring robust safety between input and output circuits. The peak repetitive off-state voltage is rated at 400 V, while the forward current capability supports standard logic interface requirements.

Feature Summary

• Zero crossing output functionality minimizes inrush current and electromagnetic interference during AC switching operations.
• High isolation voltage rating provides reliable electrical separation between control and power circuits.
• Compact surface mount package design enables efficient space utilization on modern PCB layouts.

Applications

• Solid state relays for AC load control
• Motor speed controllers
• Lighting dimmer circuits

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with zero-crossing requirements. Confirm package dimensions match your PCB footprint library. Check for RoHS compliance status if required by your manufacturing standards. Ensure storage conditions adhere to moisture sensitivity levels specified in the handling guidelines.

Selection Notes

Select this component when zero-crossing detection is critical to reduce electrical noise and stress on AC loads. Compare the 400 V off-state voltage rating against your maximum line voltage peaks. Evaluate the SOP-4 package constraints against your available board space. Consider the isolation voltage margin relative to your system's safety certification requirements.

Part Context

This component is part of Würth Elektronik's WL-OCTR family, which specializes in triac and SCR output optocouplers. The series is engineered for industrial and consumer applications requiring safe, isolated switching of alternating current. Würth Elektronik positions these devices within their broader portfolio of active components, emphasizing reliability and integration capabilities for power control systems.

Replacement Considerations

Consult official substitution lists for equivalent zero-crossing triac optocouplers with matching 400 V ratings and SOP-4 packages. Verify pinout compatibility before swapping to avoid circuit damage. Ensure replacement parts maintain identical isolation voltage and propagation delay characteristics.

FAQ

Does this optocoupler include internal zero-crossing detection?

Yes, the 14230434500 model features a built-in zero-crossing circuit to optimize AC switching timing.

What is the maximum isolation voltage rating?

The device supports an isolation voltage of 3.75 kVrms between the input LED and output triac.