Hi Tania, I am 99% sure this is a Japanese company/distributor. I have a sample bag of similar parts and there is Japanese kanji on the bag so that is a tip-off. Unfortunately, there is no more info on the bag.
I don't think that any one company has a material that is that much more special than the others. But there are different materials that can significantly affect ferrite performance, and you need to choose the right one for the frequency to be attenuated. Typically, people use type 43 (from Fair-Rite) which is very similar in performance to type 28 (from Steward). These materials are optimized for lower frequency use (30 MHz to 200 MHz). If you are trying to attenuate higher frequencies, there is the less commonly used type 61 (Fair-Rite) which is similar to type 25 (Steward). These alternate materials are better optimized to the frequency range of 200 MHz to 500 MHz. If you have trouble sourcing the KG part, you may want to consider the above materials in a split bead (clamshell construction) that is similarly sized to the KG or larger. I would suspect that either 43/28 or 61/25, appropriately sized should work. And they are readily available through a number of distributors. Good luck. [email protected] ---------- From: tania.grant To: emc-pstc Subject: Can someone identify this ferrite? List-Post: [email protected] Date: Thursday, April 10, 1997 7:02PM While performing emission testing, we have discovered that a certain ferrite performed better than some others, however, we cannot identify the source. It is a standard issue, almost square, clamshell type housing to be used with a cable approximately 10 mm diameter, with an outer off-white plastic case with the following markings: KG (italics) inside a rectangle, molded on one side SFC-10 sticky-on white label on the other side If anyone is familiar with this type, I would be most grateful if you could identify it. Thank you. Tania Grant, Octel Communications Corporation [email protected]
