SRF2012-900Y

Overview

The Bourns SRF2012-900Y is a two-line surface mount common mode choke designed for signal line protection. It features an impedance of 90 Ohms at 100 MHz and supports a maximum DC current of 330 mA. The component has a maximum DC resistance of 350 mOhms and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective suppression of common mode noise on high-speed data lines
• Compact surface mount footprint suitable for space-constrained designs
• Robust thermal performance with wide operating temperature range

Applications

• USB interface circuits
• High-speed serial data transmission lines
• Signal integrity protection in consumer electronics

Procurement Notes

Verify the exact suffix designation, as 'SRF2012-900YA' indicates a specific variant with 400mA rating and 300mOhm resistance. Confirm package dimensions and tape/reel specifications with the supplier to ensure compatibility with automated assembly processes.

Selection Notes

Select this component when a 90 Ohm impedance at 100 MHz is required for EMI filtering. Ensure the circuit's DC current does not exceed 330 mA to prevent saturation. Compare against the YA variant if higher current handling or lower DC resistance is necessary for the application.

Part Context

This part belongs to the Bourns SRF2012 series of chip inductors. The series offers various impedance values tailored for different frequency ranges. The 2012 package size provides a balance between electrical performance and board space efficiency for portable devices.

Replacement Considerations

The SRF2012-900YA is a related variant with a 400mA rating and 300mOhm DCR. Verify pinout compatibility before substitution. Other series members like SRF2012-300Y offer different impedance characteristics.