SMD inductor overview
Chip inductors, also known as high current inductors, surface mount high power inductors and power inductors. Features of miniaturization, high quality, high energy storage, and low resistance.
What is used in the design of the SMD inductor required by the material?
Materials needed for chip inductor production: mainly magnetic core and copper wire, because it is a chip inductor composed of magnetic core and copper wire.
Generally, the inductors of electronic circuits are coils with magnetic cores, or air-core coils, which can only pass currents with a small capacity and withstand lower voltages; power inductors have magnetic cores or air-core coils, which are wound by thick wires. Therefore, they can withstand their own tens of amps, hundreds, thousands, or even tens of thousands of amps.
There are two kinds of magnetic cover and without magnetic cover. The main components are magnetic core and copper wire. It mainly plays an important role in filtering and oscillation problems in the circuit.
Chip inductors commonly used in the market today
1 Ferrite chip inductor
Features: small size; small magnetic leakage; no mutual coupling between the sheets, high reliability; no lead, no tracking, suitable for high-density surface mounting; excellent solderability and thermal shock resistance, suitable for wave crest Soldering and reflow soldering.
2 Wire-wound chip inductors
Features: small size, suitable for high-density surface mounting; the use of terminal electrode structure suppresses the effect of parasitic elements due to the lead; better frequency characteristics and stronger anti-interference ability; excellent solderability and thermal shock resistance Performance; application frequency is high, which leads to high accuracy and good consistency.
3 Ceramic multilayer chip inductors
Features: Alumina produces ceramics, suitable for high self-resonator operating frequency; small size (1.6t0.8t0.8mm); high frequency Q value, stable inductance value; use range of ambient temperature change: -30℃~85℃. Usually used for filtering and shaking.
4 SMD inductance beads
Features: suitable for surface mounting; size, shape and electrical properties are more in line with EIA standards; good solderability and thermal shock resistance; suitable for wave soldering and reflow soldering.
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