750311303

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750311303 is a surface-mount flyback transformer designed for DC/DC converter applications. It operates at a frequency of 100kHz and provides 1500Vrms isolation. The component features an inductance of 50µH measured at 10kHz. It supports a primary voltage range of 9 to 30V and delivers an auxiliary voltage of 10V at 20mA. The unit measures 13.34mm x 15.24mm with a maximum height of 11.56mm. It functions within a temperature range of -40°C to 125°C.

Switching Converter, SMPS Transformers Feature Summary

• Provides high-voltage isolation of 1500Vrms for safety-critical circuits
• Optimized for LT357x series switching regulators
• Designed for compact surface-mount assembly

Switching Converter, SMPS Transformers Applications

• Flyback converters for DC/DC conversion
• SMPS transformer integration
• Industrial power supplies

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific package variant (tape and reel) required for automated assembly lines. Confirm that the target design utilizes compatible driver ICs from the specified Linear Technology family. Ensure thermal management strategies align with the 125°C operating limit. Cross-reference pinout diagrams against the official datasheet before PCB layout finalization to prevent installation errors.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing isolated power stages requiring 1500Vrms barrier protection. It is suitable for systems utilizing LT3573, LT3574, LT3575, or LT3748 controllers. Choose this part for applications demanding a 50µH primary inductance at 100kHz operation. Consider its SMD footprint constraints during mechanical enclosure design.

Switching Converter, SMPS Transformers Part Context

This transformer belongs to the WE-FB LT3575 series by Würth Elektronik. It is engineered specifically to interface with Linear Technology's LT357x family of buck-boost flyback controllers. The series emphasizes compact form factors for modern electronics while maintaining robust isolation standards for industrial and commercial power supply designs.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes include other Würth Elektronik flyback transformers rated for 100kHz and similar inductance values. Verify compatibility with LT357x drivers if replacing with non-Würth components. Check isolation voltage ratings and physical dimensions to ensure fitment.