Frequently Asked Questions. Still don't see what you're looking for? Ask The Advisor
Are all of Fair-Rite products RoHS compliant?
YES. All of our products are RoHS compliant and have been since 2005. You can access the RoHS certificates here.
Where can I find Fair-Rite’s Conflict Materials Report?
You can find that report here.
I need a sample part to test, is this possible?
We’d be happy to! Please complete our Sample Request Form and someone will be able to assist you.
What material performs best for an EMI problem at my particular frequency?
for 150kHz -10MHz : 75 material, for 1-300MHz : 31 material, for 25 MHz-300 MHz: 43/44 material, for 200MHz- 1GHz : 61 material.
How does the part numbering system work?
What is the temperature rating for your parts?
For the majority of Product Classes, parts will operate from -55C to a temperature below the Curie Temperature for the specific material type. Performance will vary over temperature. Refer to performance characteristics for the specific material.
For Snap-It components (Product Class starting with 04) 0 to +85 deg. C : this is based on the plastic case only. At low temperature the plastic becomes brittle and may crack. At high temperatures the plastic may soften and deform.
What is the max temperature that a ferrite core can be subjected to before permanent damage occurs?
Generally speaking it is the material type’s Curie Temperature, where the ferrite loses its magnetic properties; when the temperature returns to below Curie, the magnetic properties return but, in some instances, not to where they were before the exposure to high temperature. Physically, electrical and magnetic performance aside, ferrites can withstand temperatures in excess of 1000 deg C without melting but can crack due to fast temperature change.
What are the storage condition requirements for Fair-Rite parts?
Generally speaking -40 to +125 C for the part itself; 0-85C for parts with plastics cases (i.e Snap-its). Parts with conductors, humidity could be an issue.
Do I need to protect the parts in an outdoor application?
Ferrite material by itself (no conductor or plastic enclosure) is fairly inert when it comes to adverse environmental conditions, electrical properties do change with temperature. Concern with conductors is the same as with any other electronic component. Plastic cases are polypropylene and can degrade with UV exposure over time, additionally the plastic cased parts are not really intended for outdoor or extreme temperature installations. If used in such environments: it would be judicious to wrap a robust tape, nylon cable tie or other holding mechanism around the plastic case for security as the plastic can deform at temperatures below 0 deg C. or above +85 deg C.
I have a part number, I need to know if you have it in stock, what should I do?
I only need to purchase a few parts, who should I contact?
You can purchase our parts through one of our Authorized Distributors. Find their information here.
I have an old Fair-Rite part number, how do I find out the equivalent of it?
Glad to see you’re back! Please submit your part number to our Ask the Advisor form and a technical engineer will be able to help!
What is the average lead time for an order?
When no inventory exists at the factory or with distributors, typical lead time to manufacture is 6-8 weeks after receipt of order (ARO).
How are solid cores secured to a cable?
Possible solutions are a tie wrap on the cable at each end of the core, over mold, heat shrink tubing or tape.
I have installed some of your Snap-It ferrites. I now want to move them to a different cable. How do I un-snap them?
Only the very old Snap-It devices do not have an easy to use latch for opening. We do not recommend snapping and unsnapping more than a couple of times, since these latches are not that robust and could break or weaken. Careful prying of the latch with your hand or a flat head screwdriver will unlock the case.
Are Fair-Rite products UL approved?
Fair-Rite does not have UL ratings, the end product is what would be rated. The resins for the plastic cases and the material used for conformal coatings from our suppliers have UL file numbers.
Are ferrite beads considered ESD sensitive?
Ferrite cores are a soft magnetic ceramic material and are not effected by Electrostatic Discharge (ESD).
Can you supply the ECCN (Export Control Classification Number)?
Can ferrite cores be welded to an object?
No they can not because there is no metal to adhere to in ferrite.