SRF2012-201Y

Overview

The Bourns SRF2012-201YA is a surface-mount common mode choke featuring a ferrite core and four terminals. It supports a maximum DC current of 300 mA with a maximum DC resistance of 400 mΩ to 500 mΩ. The component operates within a temperature range of -55°C to 125°C and carries a 50 VDC voltage rating. Its impedance is specified at 200 Ω ±25%. The physical dimensions are 2.0 mm in length, 1.2 mm in width, and 1.2 mm in height.

Feature Summary

• Designed for EMI filtering in high-speed digital signal lines
• Suppresses common mode noise effectively
• Utilizes a compact multi-layer chip structure

Applications

• EMI filtering in signal lines
• High-speed digital circuits
• Portable computing devices

Procurement Notes

Verify the exact suffix (e.g., YA) against the manufacturer's official datasheet to confirm specific tolerance and packaging details. Ensure the selected variant matches the required impedance and current ratings for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component for applications requiring compact EMI suppression in portable electronics. Verify that the 300 mA current rating and 200 Ω impedance align with the signal line requirements. Confirm compatibility with surface mount assembly processes and operating temperature ranges.

Part Context

This part belongs to the SRF2012A series of common mode chokes from Bourns. These components are engineered for space-constrained environments, offering reliable noise suppression in small form factors suitable for modern electronic devices.

Replacement Considerations

Check for direct substitutes within the SRF2012 series or other 0805 footprint common mode chokes with matching 200 Ω impedance and 300 mA ratings. Verify pinout and electrical specifications before substitution.