7491181112

Overview

The Würth Elektronik 7491181112 is a WE-UNIT offline power transformer designed for board mounting applications. It features a primary inductance of 175µH and supports a maximum current of 0.21A with a primary resistance of 0.29Ω. The component utilizes a DIP-8P package measuring 21.5x15mm, suitable for compact power supply designs requiring reliable isolation and efficient energy transfer in offline converter topologies.

Feature Summary

• Integrated offline transformer design for compact power conversion
• DIP-8P through-hole package for standard PCB integration
• Optimized magnetic properties for efficient energy transfer

Applications

• Offline power supply units
• AC-DC converter circuits
• Isolated power management systems

Procurement Notes

Verify the specific datasheet version and manufacturing date code upon order confirmation to ensure compliance with current quality standards. Confirm that the DIP-8P footprint matches your PCB layout requirements precisely. Check for any regional regulatory certifications relevant to your target market before finalizing procurement decisions.

Selection Notes

Select this component when designing isolated offline converters requiring a 175µH primary inductance and 0.21A current handling. Ensure the system topology accommodates the 0.29Ω primary resistance. Verify thermal performance within the operating range and confirm mechanical fit within the designated 21.5x15mm space constraint on the printed circuit board.

Part Context

This part belongs to the WE-UNIT series from Würth Elektronik, which specializes in magnetics for power electronics. The series targets industrial and consumer applications needing reliable, compact magnetic components. It complements other Würth power solutions by providing standardized, high-quality transformers for common offline switching regulator architectures.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Engineers should consult official Wurth Elektronik channels or authorized distributors for verified cross-reference information if alternative sourcing is required.