750311838

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750311838 is a flyback transformer designed for DC/DC converter applications, specifically optimized for the LT8300 switching regulator. It features a single primary winding and dual secondary windings, providing an inductance of 350 µH at 100 kHz. The component supports a primary voltage range of 36 V to 72 V and delivers two isolated 15 V outputs with a current rating of 70 mA each, totaling a power rating of 2.1 W. It offers 1500 Vrms isolation and operates at a switching frequency of 190 kHz. The device utilizes surface-mount technology (SMD/SMT) with dimensions of 9.78 mm length, 9.14 mm width, and 10.54 mm height.

Switching Converter, SMPS Transformers Feature Summary

• Optimized for LT8300-based flyback topologies
• Dual secondary windings for independent isolated outputs
• High isolation voltage of 1500 Vrms
• Compact surface-mount package design

Switching Converter, SMPS Transformers Applications

• DC/DC converter modules using LT8300 controllers
• Isolated power supplies for general electronic equipment
• Board-mounted SMPS designs requiring dual low-voltage rails

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly from Würth Elektronik before procurement. Confirm that the operating environment matches the component's thermal and electrical ratings. Ensure PCB footprint compatibility with the specified SMD dimensions. Check for any required written approval for use in safety-critical or automotive applications as per manufacturer guidelines.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing flyback converters around the LT8300 controller requiring dual 15 V isolated outputs. It is suitable for applications needing 2.1 W total power with high isolation requirements. Consider the 350 µH primary inductance and 190 kHz operating frequency during magnetic design validation. Ensure input voltage stays within the 36 V to 72 V range for optimal performance.

Switching Converter, SMPS Transformers Part Context

This part belongs to the WE-FB MID-FLYLT series of flyback transformers manufactured by Würth Elektronik. These components are engineered for efficient power conversion in compact form factors. The series targets modern electronics requiring reliable isolated power delivery with minimal footprint. The 750311838 variant is specifically tuned for compatibility with Linear Technology/LTC LT8300 integrated circuits.

Switching Converter, SMPS Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires verifying pinout, inductance, isolation voltage, and physical dimensions against the original design requirements.