750871830

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750871830 is a through-hole flyback transformer designed for AC/DC converters and LED drivers. It features a single primary winding with an inductance of 900µH at 100kHz. The unit provides 4000Vrms isolation voltage and operates within a temperature range of -40°C to 125°C. Secondary outputs include 12V at 700mA, 5V at 500mA, and 3.3V at 500mA. An auxiliary winding supplies 15V at 30mA. The component measures 20.32mm x 24.38mm with a maximum height of 16.13mm.

Switching Converter, SMPS Transformers Feature Summary

• Provides high-voltage isolation of 4000Vrms for safety-critical applications
• Designed specifically for use with NXP Semiconductors TEA1523P controller chips
• Offers multiple regulated secondary voltage outputs for complex power distribution

Switching Converter, SMPS Transformers Applications

• LED driver circuits
• AC/DC switched-mode power supplies (SMPS)
• General AC/DC converter designs

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer specifications may undergo revisions. Confirm that the target design utilizes the NXP TEA1523P chipset, as this transformer is optimized for that specific control architecture. Ensure PCB footprint compatibility with the 20.32mm x 24.38mm package dimensions before finalizing procurement decisions.

Switching Converter, SMPS Transformers Selection Notes

Select this component only if the application requires compatibility with the NXP TEA1523P controller family. It is suitable for designs needing 4000Vrms isolation and specific multi-rail secondary outputs. Verify that the operating frequency aligns with the 100kHz specification and that the thermal environment remains within the -40°C to 125°C operational range.

Switching Converter, SMPS Transformers Part Context

This part belongs to the WE-UNIT series, which consists of pre-engineered transformer solutions. These units are typically paired with specific controller ICs to simplify power supply development. The MID-OLNXP designation indicates its integration pathway with NXP semiconductor platforms, streamlining the design process for manufacturers using those specific chipsets.

Switching Converter, SMPS Transformers Replacement Considerations

Direct replacements must match the 900µH primary inductance, 4000Vrms isolation rating, and pinout configuration. Compatibility with the TEA1523P controller is essential; generic transformers may not provide the necessary auxiliary winding characteristics or magnetic coupling required for stable operation in this specific circuit topology.