Aolittel Technology Co.,Ltd
| Payment Terms | T/T, Western Union |
| Supply Ability | 100,000 PCS Per Month |
| Delivery Time | 2 Weeks |
| Packaging Details | Bulk |
| Coil Type | Air Core Inductor |
| Shape | Round or Square |
| Q factors | Up to 130 |
| tolerance | 2%-5% |
| Inductance | 5.5 to 27nH |
| Current | max 4.4 Amps |
| Model Number | T Series |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 100,000 PCS Per Month |
| Delivery Time | 2 Weeks | Packaging Details | Bulk |
| Coil Type | Air Core Inductor | Shape | Round or Square |
| Q factors | Up to 130 | tolerance | 2%-5% |
| Inductance | 5.5 to 27nH | Current | max 4.4 Amps |
| Model Number | T Series | Place of Origin | China |
| High Light | wireless charging receiver coil ，pcb wireless charging coil | ||
Custom Made Ultra-Miniature High Current Surface Mount Square Air Core Inductors 5.5 to 27nH For RF Circuits
Description
Square Air Core RF Inductors, part of the wound air core inductor family, are ideal for RF circuits, broadband I/O filtering, frequency selection, or impedance matching. The unique square cross section of the air core inductor provides better performance, and offers manufacturing advantages over toroidal coils.
Model Example
| 1 | 2 |
| |
| Wire diameter:0.8mm ID 5mm;Turn:1.5 turn; Length:6mm | Wire Diameter:1.2mm ID 4mm;Turn:4 turn;Length:11mm |
Typical Applications
RF Applications
RF Circuits
Broadband I/O Filtering
Impedance Matching
Features & Benefits
Square cross section construction
Available in 0806, 0807, and 0908 sizes
20 Inductance values ranging from 5.5nH to 27.3nH
High Q
High Current
Excellent SRF
Customized available
L versus Frequency Curve
What is an air core coil?
We'll use the term 'air core coil' to describe an inductor that does not depend upon a ferromagnetic material to achieve its specified inductance. This covers the cases where there really is just air inside as well as windings upon a different insulator such as bakelite, glass or PTFE etc.
Do you need an air coil?
What are the advantages of an air core coil?
Its inductance is unaffected by the current it carries. This contrasts with the situation with coils using ferromagnetic cores whose inductance tends to reach a peak at moderate field strengths before dropping towards zero as saturation approaches. Sometimes non-linearity in the magnetization curve can be tolerated; for example in switching converters. In circuits such as audio cross over networks in hi-fi speaker systems you must avoid distortion; then you need an air coil. Most radio transmitters rely on air coils to prevent the production of harmonics.
Air coils are also free of the 'iron losses' which affect ferromagnetic cores. As frequency is increased this advantage becomes progressively more important. You obtain better Q-factor, greater efficiency, greater power handling, and less distortion.
Lastly, air coils can be designed to perform at frequencies as high as 1 Ghz. Most ferromagnetic cores tend to be rather lossy above 100 MHz.
And the 'downside'?
Without a high permeability core you must have more and/or larger turns to achieve a given inductance value. More turns means larger coils, lower self-resonance and higher copper loss. At higher frequencies you generally don't need high inductance, so this is then less of a problem.
Greater stray field radiation and pickup. With the closed magnetic paths used in cored inductors radiation is much less serious. As the diameter increases towards a wavelength (lambda = c / f), loss due to electromagnetic radiation will become significant. Balanis has the gory details. You may be able to reduce this problem by enclosing the coil in a screen, or by mounting it at right angles to other coils it may be coupling with.
You may be using an air cored coil not because you require a circuit element with a specific inductance per se but because your coil is used as a proximity sensor, loop antenna, induction heater, Tesla coil, electromagnet, magnetometer head or deflection yoke etc. Then an external field may be what you want.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2017
Total Annual:
3,750,000-5,000,000
Employee Number:
400~500
Ecer Certification：
Site Member
Aolittel Technology Co.,Ltd. , specilized in production of various fuse , fuse holder and associated Products with plant area 5,000 m2 located in Dongguan city , which is widely known as World's Factory . Our R&D consist of experienced engineers with rich ... Aolittel Technology Co.,Ltd. , specilized in production of various fuse , fuse holder and associated Products with plant area 5,000 m2 located in Dongguan city , which is widely known as World's Factory . Our R&D consist of experienced engineers with rich ...
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