750340477

Switching Converter, SMPS Transformers Overview

The Würth Elektronik part number 750340477 is a flyback transformer designed for AC/DC converter applications, specifically targeting LED drivers and general SMPS topologies. It features a through-hole mounting style with an isolation voltage of 1000Vrms. The component exhibits an inductance of 550µH measured at 60kHz. Its physical dimensions are 34.00mm in length, 34.80mm in width, and a maximum installation height of 24.26mm. The device operates within a temperature range of -40°C to 125°C and complies with RoHS3 standards.

Switching Converter, SMPS Transformers Feature Summary

• Engineered for flyback topology in AC/DC conversion systems
• Provides high insulation safety with 1000Vrms isolation rating
• Optimized for LED driver power supply implementations

Switching Converter, SMPS Transformers Applications

• LED lighting power supplies
• AC/DC switching mode power converters
• General purpose offline SMPS designs

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet revision against the manufacturing date code to ensure compliance with recent design corrections issued in February 2024. Confirm that the target PCB layout accommodates the through-hole footprint dimensions of 34.00mm by 34.80mm. Ensure the application circuit respects the 1000Vrms isolation barrier requirements during system integration testing.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing flyback converters requiring robust isolation for LED or AC/DC applications. The 550µH inductance value suits specific controller architectures, such as those utilizing NXP SSL1750 chips. Consider the through-hole form factor if surface-mount alternatives are unsuitable for thermal or mechanical constraints in the target enclosure.

Switching Converter, SMPS Transformers Part Context

This transformer belongs to Würth Elektronik’s WE-UNIT and WE-FB product families, which specialize in offline and flyback power transformers. These components are engineered to support various switching controller ICs from manufacturers like NXP Semiconductors. The series provides standardized solutions for common isolated power conversion topologies used in industrial and consumer electronics.

Switching Converter, SMPS Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Designers should consult official Wurth Elektronik channels for cross-reference recommendations or verify compatibility with alternative flyback transformers based on identical electrical parameters and pin configurations.