ferrite bar
Brand Name:QC
Model Number:QCH001
For antenna application, the design objective is to get high Q at the center of the design frequency of operations. Ferrite Rods are widely used as loop antennas such as broadcast-band receivers, low and medium frequency direction-finder receivers, airborne navigation receivers, AM, FM and VHF receivers.
The material 61 (ui = 125) rods are mainly used in the 550 Khz to 1660 Khz commercial AM radio antennas.
Material 61 (ui = 125) rods are also used by radio amateurs in the 2 MHz to 30 MHz range.
The material 33 (ui = 800) rods are more suitable for lower frequencies in the 100 Khz to 1 Mhz or the low frequency (LF) ranges. The table above shows the recommended frequency ranges for different materials. As a general rule, the higher the operating frequency, the lower permeability of the rod cores are needed.
The material 77 (ui = 2000) rods are most suitable for very low frequency (VLF) receiver application. Material 77 is typically used in receiver application below 10 Khz.
Toroids cannot be used as receivers as they have closed loops. Rods, bars and plates have open loops and are thus suitable as radio receivers. However, the efficiency of the rod as antennas degrades as the rod overall length versus the diameter ( l/d) increases. When the l/d goes over 35, the rod behaves more like an toroidal cores, and the close loop effects kicks in making these rods ineffective as an antenna. On the other hand, for very short rods where the l/d is less than 5, the effectiveness of the antenna is also diminished. Therefore, optimum l/d ratio is from 10 to 25 for a rod antenna.
Our Advantage:
1.Little volume and strong magnetic force
2.Excellent and reasonable Design as per customers' requirements
3.High quality, better and lower price
| Product Name | Ferrite Magnet |
| Size | Per customer's request |
| Grade | N35 N38 N40 N42 N45 N48 N50 N52 (M.H.SH.UH.EH) |
| Coating | Nickel, Zn, Ni-Cu-Ni , Expory ,Rubber, Gold, Sliver and so on |
| Shape | round/disc, block,Cylinder, Bar, Ring, Countersunk, Segment, hook, Cup |
| Brand Name | QC |
| Tolerance | ± 0.05mm |
| Magnetism direction | Thickness/Axially/Diametrally/Multi-poles/Radial Magnetized |
| MOQ | 1000pcs |
| Application | motors, sensors, microphones, wind turbines, wind generators, printer, switchboard, packing box ,loudspeakers etc |
| Certification | ISO9001,CE |
1. Strong Magnet
2. 80-200'C Working Temp
3. Precise Tolerance
4. Implement Strictly Factory Inspection Standards
5. Support Customized Product
Q:How about your after-sale service?
1.365 day warranty
2.20 days refund without reason
3.If the customer has any questions,we will provide technical support timely.
Q:What are the advantages of your products?
1.We have all models of material, save you time looking for it.And recommend materials for you if you need.
2.With the same quality products,we can give you best price. Inquiries to after-sale, we will provide good service,such as update product status, technical support etc.(24 hour online)
3.We have many stocks, and the delivery time usually is short.
Q:What is your MOQ?
A:No MOQ.we accept small orders. Because we believe that small orders may become big orders in the future.
Q:If I place an order, how long will it take to deliver?
A:It usually takes about only 2-3 days after receiving the payment, depends on the quantity ordered and the stock status.
Q:Do you have OEM/ODM?
A:Yes. we have our factory.Please tell us your requirement,we will reply as soon as possible,we offer custom packaging and printing services for your convenience..
Q:How do you test the product before they are packed?
A: We have the strict QC procedure, each product will be tested with professional procedures before packing.
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