750311342

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750311342 is a surface-mount flyback transformer designed for DC/DC converters and SMPS applications. It features an inductance of 15 µH at 100 kHz, a saturation current of 3 A, and operates at switching frequencies up to 250 kHz. The component provides 1500 Vrms isolation between primary and secondary windings. It utilizes the LT3575 chipset architecture and includes a turns ratio of 2:1:2. The package dimensions are optimized for board mounting with a maximum height of 11.43 mm.

Switching Converter, SMPS Transformers Feature Summary

• Designed specifically for flyback converter topologies using Linear Technology LT3575 controllers
• Provides robust electrical isolation rated at 1500 Vrms for safety compliance
• Engineered for high-frequency operation supporting switching rates up to 250 kHz
• Constructed as a single primary winding unit suitable for compact surface-mount assembly

Switching Converter, SMPS Transformers Applications

• Flyback converter circuits in switch-mode power supplies
• General electronic equipment requiring isolated DC/DC conversion
• Applications utilizing Linear Technology LT3575 controller ICs
• Compact power modules needing high-frequency magnetic components

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and tolerance specifications. Confirm that the intended application voltage and current requirements align with the component's 15 µH inductance and 3 A saturation limits. Check for any recent Product Change Notifications (PCN) regarding material or design updates to ensure compatibility with existing designs.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing flyback converters based on the LT3575 architecture. Ensure the PCB layout supports the specified surface-mount footprint and thermal requirements. Consider the 1500 Vrms isolation rating for safety standards compliance. Verify that the operating frequency remains within the 250 kHz limit to maintain efficiency and prevent core saturation issues during peak load conditions.

Switching Converter, SMPS Transformers Part Context

This part belongs to the WE-FB series of flyback transformers manufactured by Würth Elektronik. These components are specifically tuned for use with Linear Technology switching regulators, offering a pre-magnetized solution that simplifies design implementation. The series focuses on providing reliable isolation and performance for standard SMPS applications without requiring custom magnetic design.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes include other WE-FB series transformers compatible with the LT3575 controller, such as the 750311341 which offers different inductance characteristics. Ensure any replacement maintains the same 1500 Vrms isolation rating and physical footprint to preserve board integrity and safety certifications.