Where Can I Find Small Ferrite Bobbin Cores for Prototype Projects?

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Small ferrite bobbin cores for prototype projects can be challenging to source in small quantities, with Cosmo Corp being one option that requires a minimum order of 100. Dimensions specified include a length of 0.63 inches, an outer diameter of 0.18 inches, and an inner diameter of 0.07 inches. Alternatives mentioned include Digikey and Allied Electronics, which may offer smaller quantities. For highly specific needs, contacting manufacturers directly for evaluation samples is recommended. Finding the right supplier can streamline the prototyping process effectively.
pinchy911
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I am looking for a company that sells ferrite Bobbin cores that are very small in size. I have been looking for a week now, and the closest I have come is Cosmo Corp (http://www.cosmocorp.com/en/) , but they sell only in shipments of 100. This is for a prototype project and I need at max 10-15.

The dimensions are:

length: 0.63 in
OD: 0.18 in
ID: 0.07 in
 
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