SRF2012-121YA

Overview

The SRF2012-121YA is a two-line common mode choke from Bourns Inc., designed for surface mount applications. It features an impedance of 120 Ohms at 100 MHz and a rated current of 400 mA. The component has a direct current resistance (DCR) of 300 mOhm. It is AEC-Q200 compliant, indicating suitability for automotive environments.

Feature Summary

• Provides common mode noise suppression for differential signal lines
• Surface mount construction for automated assembly integration
• Automotive grade qualification ensuring reliability in vehicle electronics

Applications

• Automotive infotainment systems
• Data line filtering in vehicle networks
• LTE module interface protection

Procurement Notes

Verify the exact part number suffix against official Bourns documentation to ensure correct impedance and tolerance specifications. Confirm AEC-Q200 compliance requirements match your specific automotive application standards before procurement.

Selection Notes

Select this component when space-constrained surface mount solutions are required for automotive data lines. Ensure the 400 mA current rating meets the operational load of the target circuit without saturation.

Part Context

This component belongs to the SRF series of shielded common mode chokes by Bourns. These components are engineered for high-frequency noise attenuation in compact electronic designs, particularly where automotive durability and small form factors are critical.

Replacement Considerations

Consult official Bourns substitution guides for verified equivalents. Generic cross-references may not maintain AEC-Q200 compliance or identical impedance characteristics.