Visaton 4991 Air Core Coil
MPN: 4991
Visaton
Power Inductors - SMD COIL AIR SP 0 68MH-0 6mm WIRE
3 in stock
Overview
The Visaton 4991 is a surface-mount air core inductor featuring a 0.68mH inductance wound with 0.6mm diameter wire. Unlike ferrite-core inductors, this air-spaced coil avoids magnetic saturation and hysteresis distortion, making it suitable for high-fidelity signal paths.
Why Choose This Part
The air core construction eliminates non-linearities and saturation common in ferrite components at high power levels. Using 0.6mm wire ensures a balance between low DC resistance and a compact SMD footprint for automated assembly.
Applications
Passive Crossover Networks
Used as a frequency-selective component in speaker crossovers to filter audio signals without introducing magnetic core distortion.
RF Filtering
Suitable for high-frequency resonant circuits where low loss and stable inductance are required.
Impedance Matching
Correcting load characteristics in audio or low-frequency RF amplification stages.
