MFBA3V1005K-301-R

Chip Ferrite Bead Overview

The MFBA3V1005K-301-R is an automotive multilayer chip ferrite bead manufactured by Eaton Electronics. It features a 0402 (1005 metric) surface-mount package with dimensions of 1.00mm x 0.50mm x 0.50mm. The component provides an impedance of 300 Ohms at 100 MHz and supports a maximum DC current of 100 mA. Its maximum DC resistance is specified at 600 mOhms. The device operates within a temperature range of -55°C to +150°C and holds AEC-Q200 qualification for automotive reliability.

Chip Ferrite Bead Feature Summary

• Automotive-grade multilayer construction designed for EMI suppression in vehicle electronics
• AEC-Q200 qualified for high reliability and thermal stability in demanding environments
• Compact 0402 footprint enables dense PCB layout optimization
• Wide operating temperature range suitable for harsh automotive conditions

Chip Ferrite Bead Applications

• Automotive infotainment system noise filtering
• Engine control unit signal line protection
• Power distribution network EMI suppression in vehicles
• Sensor interface circuitry noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix K against the manufacturer datasheet to confirm impedance tolerance and material composition, as suffixes define critical electrical characteristics. Confirm AEC-Q200 compliance requirements match the target automotive application standards. Ensure the 100 mA current rating aligns with the circuit's operational load to prevent saturation. Check RoHS3 status for environmental compliance needs.

Chip Ferrite Bead Selection Notes

Select this component when a compact 0402 ferrite bead with 300 Ohm impedance at 100 MHz is required for automotive applications. The 100 mA current rating suits low-current signal lines rather than power rails. The wide -55°C to +150°C temperature range makes it suitable for under-hood or exterior automotive zones. Compare with MFBW1V1005 series if higher current capacity is needed, noting the MFBA3 series prioritizes automotive qualification.

Chip Ferrite Bead Part Context

This part belongs to Eaton's MFBA3 series of automotive multilayer chip ferrite beads. The series is specifically engineered for EMI suppression in automotive electronics, meeting stringent AEC-Q200 standards. It complements other Eaton ferrite products like the MFBM1 and MFBW1 series, offering specialized performance for automotive environments with extended temperature ranges and robust mechanical stability.

Chip Ferrite Bead Replacement Considerations

The MFBW1V1005-301-R offers similar 300 Ohm impedance but typically carries a lower current rating and different temperature specifications. Verify if the non-automotive grade MFBW1 series meets the application's reliability requirements. Direct substitutes must maintain the 0402 footprint and 300 Ohm @ 100 MHz characteristic.