B82804A0474A125

Overview

The B82804A0474A125 is a surface-mount pulse transformer manufactured by TDK Electronics (formerly EPCOS). It features an inductance of 473 µH and a turns ratio of 2.5:1. The component has a primary resistance of 1.5 Ω and supports a voltage rating of 1.5 kV. Designed for high-frequency applications, it utilizes a compact SMT package suitable for automated assembly processes in modern electronic circuits.

Feature Summary

• Surface-mount construction optimized for automated PCB assembly
• High isolation voltage capability for safe signal transmission
• Fixed turns ratio for precise impedance matching

Applications

• Gate drive transformers for power electronics
• Pulse isolation in communication interfaces
• Signal coupling in switching power supplies

Procurement Notes

Verify the complete ordering code including suffixes to ensure correct specifications. Confirm that the required inductance and voltage ratings match the design requirements. Check RoHS compliance status if environmental regulations apply. Ensure the surface-mount footprint matches the PCB layout constraints before procurement.

Selection Notes

Select this component when a specific 2.5:1 turns ratio and 473 µH inductance are required for pulse isolation. Consider the 1.5 kV isolation rating for safety-critical applications. Evaluate the physical dimensions against available board space. Compare alternative packages if different mounting styles are needed.

Part Context

This part belongs to the B82804A series of pulse transformers from TDK Electronics. The series offers various inductance values and turns ratios for different application needs. These components are widely used in industrial and automotive electronics where reliable signal isolation is critical.

Replacement Considerations

Consult official TDK documentation for direct substitutes within the B82804A series with compatible electrical parameters. Verify pinout compatibility and mechanical dimensions before replacing existing designs.