750811145

Switching Converter, SMPS Transformers Overview

The Würth Elektronik part number 750811145 is a WE-UNIT Offline power transformer designed for AC/DC converter applications. It features a primary inductance of 1.20 mH and a DC resistance of 0.870 Ohms. The component provides 3750 VDC isolation and operates at a frequency of 130 kHz. It utilizes a through-hole mounting style with physical dimensions of 22.25 mm in length, 22.86 mm in height, and an unspecified width typical for this form factor.

Switching Converter, SMPS Transformers Feature Summary

• Provides high-voltage isolation rated at 3750 VDC for safety compliance
• Engineered for offline switching mode power supply (SMPS) topologies
• Supports 130 kHz operating frequencies for efficient energy transfer

Switching Converter, SMPS Transformers Applications

• AC/DC switched-mode power supplies
• Offline LED driver circuits
• General-purpose isolated DC/DC conversion systems

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer specifications may be updated. Confirm that the through-hole package dimensions align with your PCB footprint requirements. Ensure the 3750 VDC isolation rating meets the safety standards required by your target market regulations. Cross-reference the 1.20 mH inductance value against your circuit design calculations to guarantee proper transformer performance.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing isolated AC/DC converters requiring robust voltage separation. The 130 kHz frequency rating suits standard flyback or forward converter designs. Consider the physical size constraints, as the unit measures approximately 22.25 mm by 22.86 mm. Verify that the 0.870 Ohm DC resistance fits within your efficiency targets. This transformer is suitable for applications needing reliable galvanic isolation between input and output stages.

Switching Converter, SMPS Transformers Part Context

This component belongs to the Würth Elektronik WE-UNIT Offline series, which specializes in transformers for offline power conversion. These units are designed to replace traditional discrete transformer windings with standardized, pre-tested components. The series supports various isolation voltages and inductance values to accommodate diverse SMPS architectures. Würth Elektronik manufactures these components to meet international quality and safety standards.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes must match the 1.20 mH inductance, 0.870 Ohm resistance, and 3750 VDC isolation. Verify pinout compatibility and physical envelope dimensions before substitution. Alternative parts from other manufacturers should offer equivalent frequency response characteristics. Ensure any replacement maintains the same through-hole mounting configuration.