2021 China New Design Rotor Coil - Inductor air coil – Mingda
2021 China New Design Rotor Coil - Inductor air coil – Mingda Detail:
Air coil models an air core coil inductor with centered axial leads. Coil and lead dimensions are configurable.
We have exported this kind of SMD inductor coil mainly to USA, UK, Germany, Korea and Canada.
Advantages:
1.Customized according to your unique request
2.Very high precision
3. All products 100% tested
4. Build to confirm ROHS compliant
5.Short lead time and quick sample
6. Pick and place process possible
7. Good solderability (tinned connector pins)
8.Tape&Reel packaging
Size and dimensions:
ID+0.1/-0 .05 | TURNS |
A(REF) |
B(REF) |
C±0.2 |
3 |
11 |
6.5 |
3.8 |
1. 5 |
Parameters
Name | Description |
ID | Subcircuit ID |
NET | Subcircuit name |
*M | Multiplicity factor – not used for this model |
NTurns | Number of turns |
WireDia | Diameter of the wire |
CoilDia | Coil inner diameter |
Pitch | Distance between turns, measured from wire center-to-center |
LeadLen | Length of lead |
LeadOff | Offset distance between coil body and beginning of lead |
LeadType | Type of lead contact: 0=round post, 1=bottom flat tab, 2=lofted flat tab |
TabLenRatio | Ratio of tab length to total lead length for LeadType=1 or 2. 0<TabLenRatio<1 |
Rho | Bulk resistivity of conductor metal normalized to gold |
Application:
1. Satellite communication systems
2. Test equipment and microwave equipment
3.Television circuits.
4.Transmitters and band pass filters.
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.
Product detail pictures:
Related Product Guide:
What’s the role common mode choke play in daily?
We can easily normally satisfy our respected buyers with our excellent high-quality, excellent selling price and good service due to we've been far more expert and more hard-working and do it in cost-effective way for 2021 China New Design Rotor Coil - Inductor air coil – Mingda , The product will supply to all over the world, such as: Thailand, Bogota, Brazil, Aiming to grow to be by far the most experienced supplier within this sector in Uganda, we keep researching on the creating procedure and raising the high quality of our principal merchandise. Till now, the merchandise list has been updated on a regular basis and attracted customers from around the globe. In depth data can be obtained in our web page and you'll be served with good quality consultant service by our after-sale team. They're about to make it possible for you to get complete acknowledge about our things and make a satisfied negotiation. Small business check out to our factory in Uganda can also be welcome at any time. Hope to obtain your inquiries to get a happy co-operation.
By Grace from Czech Republic - 2017.02.28 14:19
The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
By Cornelia from Curacao - 2018.09.12 17:18