750871111

Switching Converter, SMPS Transformers Overview

The Würth Elektronik 750871111 is a board-mount power transformer designed for offline flyback switching mode power supplies. It features an inductance of 1.7 mH and a power rating of 12 W. The component supports primary voltages from 120 V to 385 V and provides secondary voltages of 5 V with a current rating of 2.4 A. Operating at a frequency range of 60 kHz, it offers an isolation voltage of 4 kV. This surface mount device is specifically engineered for use with the VIPER27LN controller.

Switching Converter, SMPS Transformers Feature Summary

• Engineered for offline flyback applications using the VIPER27LN controller
• Provides high isolation voltage of 4 kV for safety compliance
• Supports wide input voltage ranges from 120 V to 385 V

Switching Converter, SMPS Transformers Applications

• Offline flyback switching mode power supplies
• AC/DC converter circuits
• General purpose power supply designs requiring 12 W output

Switching Converter, SMPS Transformers Procurement Notes

Verify that the specific application requires the VIPER27LN controller compatibility, as this transformer is optimized for that chipset. Confirm that the 12 W power rating and 2.4 A secondary current meet the design requirements. Ensure the surface mount package dimensions fit the PCB layout constraints. Check that the 4 kV isolation voltage satisfies the regulatory standards for the target market.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing a compact AC/DC converter based on the VIPER27LN architecture. It is suitable for applications requiring a 12 W output power level with a 5 V secondary rail. Consider the 60 kHz operating frequency for magnetic component sizing. The surface mount format aids in automated assembly processes for high-volume production runs.

Switching Converter, SMPS Transformers Part Context

This part belongs to Würth Elektronik's MID-OLSTM series of power transformers. These components are tailored for low-power offline applications. The series focuses on providing reliable performance for consumer electronics and industrial control systems where space efficiency and electrical isolation are critical design parameters.

Switching Converter, SMPS Transformers Replacement Considerations

Direct substitutes must match the 1.7 mH inductance, 12 W power rating, and VIPER27LN compatibility. Verify pinout configuration and physical footprint before substitution. Alternative parts should offer equivalent 4 kV isolation and similar frequency characteristics.