Overview
The Fair-Rite 2743019447 ferrite bead is a compact surface-mount component engineered for electromagnetic interference suppression in high-speed signal lines. With differential mode operation across broadband frequencies (25–300 MHz), this device provides consistent impedance performance to attenuate noise and maintain signal integrity. The low DC resistance (800 µΩ maximum) minimizes voltage drop while the 5A current rating accommodates typical digital and analog signal traces.
Key Features
- Broadband frequency response: 25–300 MHz coverage
- Differential mode topology for balanced pair protection
- Low DC resistance (800 µΩ max) reduces insertion loss
- 5A continuous current rating for high-density circuits
- RoHS-compliant SMD/SMT package
- Temperature range: –55 °C to +125 °C
Technical Specifications
- Impedance @ 100 MHz: 47Ω
- Impedance @ 10 MHz: 18Ω
- Impedance @ 25 MHz: 29Ω
- Impedance @ 250 MHz: 49Ω
- DC Current Rating: 5A maximum
- DC Resistance (max): 800 µΩ
- Material: 43 Ferrite
- Package: SMD/SMT (Cut Tape, MouseReel, Reel)
- Dimensions: 5.1 mm (L) × 3.05 mm (W) × 2.85 mm (H)
- Operating Temperature: –55 °C to +125 °C
- Compliance: RoHS compliant
Typical Applications
- USB and high-speed data lines (differential pair suppression)
- Ethernet and communication interfaces
- Industrial control signal conditioning
- Audio and video signal path protection
- Power distribution and switching converter input filtering
- Medical and automotive embedded systems
Compatibility & Replacements
Compatible With
- Standard PCB assembly processes (SMT reflow soldering)
- Signal integrity and EMI filtering applications across consumer, industrial, and automotive sectors
- Both surface-mount and through-hole backplane designs (as surface mount element)
- Standard EDA/CAD tools and PCB design software (0603/1206 equivalent footprint)
Replaces / Drop-In Replacement For
- This is a standard ferrite bead component; verify compatibility with your specific circuit topology and impedance requirements before substitution.
- Similar Fair-Rite beads in the 27 series may offer comparable performance; consult datasheet impedance curves for 10–300 MHz frequency band.
Works With
- Analog and digital signal conditioning circuits
- Printed circuit board layouts and schematic design (supports differential and single-ended topologies)
- Standard surface-mount assembly equipment and reflow profiles
- EMI/RFI test and certification workflows for industrial and consumer products
