750811643

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750811643 is a surface-mount switching transformer designed for AC/DC converters and LED drivers. It features an inductance of 800µH at 10kHz, operating within a frequency range of 68 to 120kHz. The component provides 4500Vrms isolation voltage with a primary voltage rating of 120 to 375V and auxiliary voltage of 20V. It supports an operating temperature range from -40°C to 125°C and measures 21.50mm x 33.80mm x 12.12mm.

Switching Converter, SMPS Transformers Feature Summary

• Provides high-voltage isolation rated at 4500Vrms for safety compliance
• Optimized for flyback converter topologies in AC/DC applications
• Designed for surface mount assembly on printed circuit boards

Switching Converter, SMPS Transformers Applications

• LED driver circuits
• AC/DC switched-mode power supplies
• Offline power conversion systems

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure correct electrical specifications. Confirm that the required isolation voltage and inductance values match the design requirements. Check RoHS compliance status if environmental regulations apply to the final product assembly.

Switching Converter, SMPS Transformers Selection Notes

Select this component based on the required 800µH inductance and 4500Vrms isolation level. Ensure the PCB layout accommodates the specified surface mount footprint dimensions. Verify that the operating frequency range aligns with the controller IC selection and thermal management strategy for the target application environment.

Switching Converter, SMPS Transformers Part Context

This transformer belongs to the MID-OLEFD series by Würth Elektronik, specialized for board-mounted power applications. The series focuses on compact solutions for offline converters, balancing performance with space constraints in modern electronic devices requiring reliable galvanic isolation.

Switching Converter, SMPS Transformers Replacement Considerations

Cross-reference alternative transformers with identical 800µH inductance and 4500Vrms isolation ratings. Verify pin compatibility and physical footprint dimensions before substitution to ensure mechanical fit without redesigning the PCB layout.