750815047

Switching Converter, SMPS Transformers Overview

The Würth Elektronik part number 750815047 is a flyback transformer designed for AC/DC switching mode power supplies. It belongs to the WE-FB series and utilizes the TI LM3447 chipset architecture. The component features through-hole mounting with dimensions of 16.90mm length, 18.80mm width, and a maximum height of 13.44mm. Key electrical specifications include an inductance of 3.2mH at 10kHz, a primary voltage range of 185V to 265V, and 3000Vrms isolation. It operates at a frequency of 70kHz with an auxiliary voltage of 15V @ 20mA.

Switching Converter, SMPS Transformers Feature Summary

• Provides high-voltage isolation capability suitable for offline converter applications
• Engineered specifically for compatibility with the Texas Instruments LM3447 controller family
• Supports through-hole PCB integration for robust mechanical attachment

Switching Converter, SMPS Transformers Applications

• AC/DC Switching Mode Power Supply (SMPS) designs
• LED driver power conversion circuits
• Offline flyback converter topologies

Switching Converter, SMPS Transformers Procurement Notes

Verify the manufacturer product number against official Würth Elektronik documentation to ensure accuracy. Confirm that the required inductance value and isolation ratings match the specific circuit requirements. Check for any recent Product Change Notifications or design updates associated with this component before finalizing procurement plans.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing flyback converters requiring compatibility with the LM3447 control IC. Ensure the input voltage range aligns with the 185V to 265V specification. Verify that the physical footprint and through-hole mounting style fit the target PCB layout constraints.

Switching Converter, SMPS Transformers Part Context

This transformer is part of the WE-FB series from Würth Elektronik, which focuses on flyback transformers for various controller families. The 750815047 variant is specifically optimized for use with Texas Instruments' LM3447 LED driver controllers, providing a complete magnetic solution for these specific application notes.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes within the same series may exist with different pin counts or inductance values. Consult the official Würth Elektronik catalog for alternative part numbers in the WE-FB series that match the specific electrical requirements of the LM3447 application.