SRF3216-261Y

Overview

The Bourns SRF3216-261Y is a surface-mount common mode choke from the SRF3216 series, designed for signal line protection. It features a ferrite core and shielded wire-wound construction within a 3216 metric package (3.2mm x 1.6mm x 2mm). The component provides a nominal impedance of 260 ohms at 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 300 mA and has a maximum DC resistance of 450 milliohms. Operating temperatures range from -40°C to +125°C, and it meets AEC-Q200 automotive standards.

Feature Summary

• Shielded wire-wound design minimizes electromagnetic interference radiation
• AEC-Q200 qualified for automotive reliability requirements
• Compact 3216 footprint suitable for space-constrained PCB layouts

Applications

• Automotive infotainment system signal lines
• High-speed data interface protection
• Industrial control board noise suppression

Procurement Notes

Verify the specific suffix 'Y' corresponds to the required tape-and-reel packaging configuration as defined by the manufacturer. Confirm that the 300 mA current rating aligns with the peak operational loads of the target circuit to prevent saturation. Ensure compatibility with standard reflow soldering profiles specified in the official datasheet for reliable joint formation.

Selection Notes

Select this component when shielding is critical to prevent crosstalk in dense layouts. The 260 ohm impedance offers effective attenuation for high-frequency noise without excessive insertion loss for data signals. Consider the 300 mA limit for power delivery constraints and verify thermal management capabilities within the final assembly environment.

Part Context

This part belongs to the SRF3216 family of common mode chokes manufactured by Bourns Inc. The series utilizes ferrite cores to achieve high impedance in a small form factor. These components are engineered for applications requiring robust noise suppression in both consumer electronics and automotive environments where space is limited.

Replacement Considerations

Direct substitutes include other SRF3216 series variants such as SRF3216-161Y or SRF3216-601Y if different impedance values are acceptable. Verify pinout compatibility and physical dimensions before integrating alternative parts into existing footprints.