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The difference between magnetic bead inductors and chip multilayer inductors

1. Magnetic bead inductors and SMT laminated inductors?

Inductors are energy storage devices and magnetic beads are energy conversion (consumption) devices. SMT laminated inductors are mainly used to suppress conducted interference in power supply filter circuits. Magnetic beads are mostly used in signal circuits, mainly for EMI. Magnetic beads are used to absorb UHF signals. For example, some radio frequency circuits, phase-locked loops, oscillator circuits and ultra-high frequency memory circuits (DDR, SDRAM, RAMBUS, etc.) all need to add magnetic beads to the power input part. SMD inductor is a kind of energy storage element, which is used in LC oscillator circuit, medium and low frequency filter circuit, etc. Its application frequency range rarely exceeds 50MHz.

2. What are the advantages of magnetic bead inductors in circuit characteristics?
Magnetic beads inductors are used to absorb ultra-high frequency signals, such as some radio frequency circuits, phase-locked loops, oscillator circuits, including ultra-high frequency memory circuits (DDR SDRAM, RAMBUS, etc.) This kind of energy storage element is used in LC oscillation circuit, medium and low frequency filter circuit, and its application frequency range rarely exceeds the wrong 50MHZ. The ground connection generally uses an inductor, the power connection also uses an inductor, and a magnetic bead is used on the signal line? But in fact, magnetic beads should also be able to absorb high-frequency interference, right? And the inductance of the inductance after the high frequency resonance can not play a role….
Magnetic Bead Inductance
3. How much better is the chip inductance than the magnetic bead inductance?

1. Laminated inductance:

It also has good magnetic shielding, high sintering density, and good mechanical strength, compared with winding inductance: small size, which is conducive to the miniaturization of the circuit, closed magnetic circuit, will not interfere with surrounding components, and will not be affected by surrounding components It is conducive to the high-density installation of components; the laminated integrated structure has high reliability, good heat resistance, good solderability, and regular shape, suitable for automatic surface mount production. The disadvantage is that the qualified rate is low, the cost is high, the inductance is small, and the Q value is small. Generally speaking, the multilayer inductor cannot see the line, the multilayer inductor has good heat dissipation, and the ESR value is smaller. How much is the inductor magnetic beads? You can consult us about the specifications you are interested in!

2. The advantages of SMD laminated inductors are different from other inductors:
A. Small size.
B. Excellent solderability and solder resistance, suitable for flow soldering and reflow soldering.
C. Closed circuit, no mutual interference, suitable for high-density installation.
D. Non-directional, standardized appearance for automatic patch mounting.