750341087

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750341087 is a board-mount power transformer designed for AC/DC switching mode power supplies, specifically targeting LED driver applications. It belongs to the WE-UNIT MID-OLTI series and features through-hole mounting for robust mechanical integration. The component provides high isolation voltage of 4500Vrms between primary and secondary windings, ensuring safety compliance in mains-connected designs. It operates at a frequency of 100kHz with a primary inductance of 3mH measured at 10kHz. The unit accepts an input voltage range of 180 to 265V AC and includes an auxiliary winding delivering 22V at 10mA. Physical dimensions are 16.90mm length by 18.80mm width, with a maximum height of 13.44mm.

Switching Converter, SMPS Transformers Feature Summary

• Provides 4500Vrms isolation voltage for enhanced safety in AC/DC conversion circuits
• Includes dedicated auxiliary winding for supply voltage generation in controller ICs
• Engineered specifically for LED driver topologies within SMPS architectures
• Supports operation across extended industrial temperature ranges

Switching Converter, SMPS Transformers Applications

• LED lighting drivers
• AC/DC Switching Mode Power Supplies (SMPS)
• Industrial power conversion systems requiring high isolation

Switching Converter, SMPS Transformers Procurement Notes

Verify that the specific order quantity aligns with manufacturer standard packaging configurations, as this component is typically supplied in trays. Confirm that the design utilizes through-hole technology compatible with the specified pin spacing. Ensure that the thermal management strategy accounts for the operating temperature range of -40°C to 125°C. Cross-reference the auxiliary winding specifications with the target controller requirements before finalizing procurement.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing AC/DC converters requiring high isolation ratings above 4kV. It is suitable for applications where an auxiliary supply is needed directly from the transformer rather than a separate bias winding circuit. Consider the physical footprint constraints, as the through-hole package requires specific PCB real estate. Verify compatibility with the intended switching frequency of 100kHz to ensure optimal magnetic performance and efficiency.

Switching Converter, SMPS Transformers Part Context

This transformer is part of Würth Elektronik's WE-UNIT series, which focuses on integrated solutions for power conversion. The MID-OLTI designation indicates its classification within their through-hole product line optimized for offline applications. It complements other components in the ecosystem by providing reliable magnetic coupling for isolated power stages.

Switching Converter, SMPS Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacements must be sourced through official distributor channels or equivalent manufacturers with matching electrical and mechanical specifications.