EBMS201209A301

Overview

The EBMS201209A301 is a single-line ferrite bead designed for signal line noise suppression in surface-mount applications. It features an 0805 (2012 Metric) package with a maximum height of 0.90mm. The component provides an impedance of 300 Ohms at 100 MHz and supports a rated current of 300mA. Its DC resistance is specified at 250mOhm, ensuring minimal signal loss while effectively attenuating high-frequency electromagnetic interference.

Feature Summary

• Provides effective high-frequency noise attenuation for sensitive signal lines
• Compact surface-mount footprint suitable for space-constrained PCB layouts
• Low DC resistance minimizes voltage drop across the signal path

Applications

• High-speed digital signal line filtering
• Clock circuit noise suppression
• Data bus protection against EMI

Procurement Notes

Verify the specific suffix 'A301' to confirm the 300 Ohm impedance rating, as other suffixes in the EBMS201209 series indicate different impedance values. Ensure the ordering documentation explicitly references the Max Echo manufacturer to avoid confusion with generic equivalents. Confirm the package dimensions match the 0805 standard before finalizing procurement orders.

Selection Notes

Select this component when a low-impedance path is required for DC signals but significant attenuation is needed above 100 MHz. The 300mA current rating must exceed the maximum operating current of the protected line. Consider the 0805 package size relative to available board real estate and thermal constraints during the design phase.

Part Context

This part belongs to the EBMS201209 series from Max Echo, which utilizes composite ferrite materials for stable performance across temperature ranges. The series covers various impedance values within the same physical envelope, allowing designers to standardize footprints while adjusting filtering characteristics through suffix selection.

Replacement Considerations

Direct substitutes include EBMS201209A221 or EBMS201209A601 if impedance adjustments are acceptable. Verify that any replacement maintains the 0805 package dimensions and meets or exceeds the 300mA current handling capability to ensure circuit reliability.