SRF9045A-701Y

Overview

The Bourns SRF9045A-701Y is a surface-mount common mode choke designed for high-current applications. It features an inductance of 7.5 µH at 100 kHz and provides a common mode impedance of 700 Ω at 100 MHz. The component supports a maximum current rating of 5 A with a maximum DC resistance of 10 mΩ. It operates within a temperature range of -40°C to +125°C and holds AEC-Q200 automotive qualification.

Feature Summary

• Dual-line configuration for effective noise suppression in differential signal paths
• Automotive-grade construction compliant with AEC-Q200 reliability standards
• High saturation current capability suitable for power line filtering

Applications

• DC/DC converter input/output filtering
• Switch-mode power supply noise suppression
• Automotive electronic circuit protection

Procurement Notes

Verify the specific suffix '701Y' against the manufacturer's official datasheet to confirm the exact inductance value of 7.5 µH and impedance characteristics. Ensure the package dimensions and terminal configuration match the PCB footprint requirements. Confirm that the AEC-Q200 certification status is required for the intended application environment before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring robust common mode noise rejection in automotive or industrial power systems. The 5 A current rating makes it suitable for high-power density designs. Consider the 10 mΩ DCR impact on overall system efficiency. Verify thermal management capabilities given the 125°C operating limit and self-heating under full load conditions.

Part Context

This part belongs to the Bourns SRF9045A series of high-current common mode chokes. The series is engineered for compact surface-mount implementations in demanding environments. The SRF9045A-701Y variant specifically targets applications needing balanced dual-line filtering with high impedance performance at radio frequencies while maintaining low insertion loss for the differential signal.

Replacement Considerations

Consult the official Bourns replacement guide for direct equivalents. Verify pin compatibility and electrical parameters such as inductance tolerance and current rating before substituting.