749118215

Overview

The Würth Elektronik 749118215 is a through-hole transformer designed for AC/DC switching mode power supplies. It features a primary voltage range of 120 to 385V and provides 4000Vrms isolation. The component operates at a frequency of 132kHz with an inductance of 900µH measured at 10kHz. Its physical dimensions are 20.20mm in length, 24.50mm in width, and a maximum height of 16.50mm. The unit supports an operating temperature range from -40°C to 125°C.

Feature Summary

• Provides high-voltage isolation of 4000Vrms for safety compliance
• Engineered specifically for LED driver and AC/DC SMPS applications
• Compatible with NCP101x and NCP105x controller chipsets

Applications

• LED Drivers
• AC/DC Switching Mode Power Supplies

Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure authenticity. Confirm that the component meets RoHS3 specifications and EAR99 classification requirements for your region. Check for any recent Product Change Notifications regarding assembly or material updates before finalizing procurement decisions.

Selection Notes

Select this component when designing AC/DC converters requiring significant isolation barriers. Ensure the design accommodates through-hole mounting constraints given the specified footprint. Verify compatibility with intended controller ICs, such as those from On Semiconductor, to guarantee proper magnetic coupling and performance within the 132kHz operational frequency.

Part Context

This transformer belongs to the WE-UNIT series manufactured by Würth Elektronik. The series focuses on providing reliable electromechanical components for power conversion systems. The manufacturer emphasizes technical expertise and quality standards across industrial and consumer electronics sectors.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.