SRF1006-402Y

Overview

The Bourns SRF1006-402Y is a surface-mount common mode choke designed for signal line filtering. It features an inductance of 4 mH at 100 kHz and offers an impedance of 4 kOhms at 500 kHz. The component supports a maximum DC current of 300 mA with a maximum DC resistance of 550 milliohms. Rated for 50 V DC, it operates within a temperature range of -40°C to 105°C. The package dimensions are 10.00 mm x 8.70 mm x 6.50 mm.

Feature Summary

• Provides effective common mode noise suppression for high-speed data lines
• Compact surface mount design suitable for space-constrained PCB layouts
• Capable of handling specified DC bias currents without saturation

Applications

• High-speed serial interface protection
• USB port filtering
• Ethernet line filtering

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer's latest datasheet to confirm tolerance and packaging details. Ensure the ordering quantity aligns with the standard reel size of 800 units. Confirm RoHS compliance status and lead times directly with authorized distributors prior to finalizing procurement orders.

Selection Notes

Select this component when a 4 mH inductance value is required for common mode noise reduction on differential pairs. Verify that the 300 mA current rating meets the operational requirements of the target circuit. Ensure the physical footprint of 10.00 mm by 8.70 mm fits within the available board space constraints.

Part Context

This part belongs to the SRF1006 series of shielded common mode chokes from Bourns. The series is engineered for signal integrity applications requiring compact form factors. The SRF1006-402Y specifically targets higher inductance needs compared to lower-value variants within the same family.

Replacement Considerations

Direct substitutes include other SRF1006 series variants such as SRF1006-202Y or SRF1006-472Y if inductance values can be adjusted. Cross-brand replacements require matching the 10x8.7mm footprint and 4mH inductance specifications.