Bourns Introduces High-Current Ferrite Beads for Automotive EMI Suppression

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Bourns announced the release of the MH1608A Series High Current Chip Ferrite Beads, an AEC-Q200 compliant, automotive-grade component family designed to suppress high-frequency noise in space-constrained electronic designs. The series combines a compact 1.6 × 0.8 mm footprint with low DC resistance and rated current capability of up to 5 A, supporting EMI control without increasing conduction losses in dense PCB layouts.

As automotive and industrial electronic systems continue to increase in current density, designers are required to manage conducted and radiated noise within shrinking board areas while maintaining thermal margins and meeting qualification requirements.

Conventional ferrite beads may limit current handling or introduce excessive DC resistance, creating tradeoffs between EMI suppression effectiveness and power efficiency. These constraints are amplified in high-density assemblies where available routing and component placement options are limited. The MH1608A Series is intended to address these design pressures by supporting higher current levels in a small, automotive-qualified package.

“High current automotive designs often require EMI suppression components that do not become a thermal or electrical bottleneck,” said Edward Liu, Product Line Manager, Magnetics at Bourns. “The MH1608A Series is designed to support higher current handling in a compact footprint while meeting AEC Q200 requirements, which helps simplify component selection in dense automotive layouts.”

Design Features and Key Capabilities

• Compact 1608 package - 1.6 × 0.8 × 0.8 mm size supports high-density PCB layouts
• High rated current capability - supports up to 5 A depending on impedance value
• Low DC resistance - minimizes power loss and temperature rise at rated current
• Wide impedance range - 30 Ω to 1000 Ω at 100 MHz for broadband noise suppression
• Quality and reliability - automotive grade and AEC-Q200 compliant for electronic systems
• Environmental compliance - RoHS compliant and halogen free

Electrical Specifications

Target Applications

• EMI suppression in automotive power supplies
• High-density automotive PCB assemblies

The MH1608A Series High Current Chip Ferrite Beads are available through Bourns’ authorized distribution network. Samples may be requested through Bourns Customer Service.

Click here to learn more about the Bourns.

Click here to learn more about the MH1608A Series.