Conical inductors--still $10!

Phil Hobbs · 2020-07-14T13:01:47+00:00

So I was chatting with my local Mini Circuits rep, who also handles Gowanda. He asked if I was interested in conical inductors, which I certainly am, and how much I wanted to pay for them. Remembering that JL had said that the Coilcraft patent had expired, I said "forty cents in reels". Turns out that Gowanda won't go below $10 apiece in reels. I pointed out that I mostly wanted to use it with BFP640s and really wasn't going to use a $10 inductor to decouple a 20-cent transistor--especially since I can use series-connected 0201/0402/0603 inductors and beads to do almost as good a job, for $0.12 total. Those things are just ordinary ferrite or powdered iron, wound with ordinary copper, and can't be that hard to make, so once the patent(s) expire, it's hard to imagine how they can maintain that pricing level. What gives, do you suppose? Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510

Jul 14, 2020 21 Replies

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Clifford Heath 6 years ago

And much smaller ones claimed god to 3GHz - but these limits are rather arbitrary, and should be tested for your application:

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Clifford Heath 6 years ago

This thread started with a discussion of the price of such things. Have you actually looked?

A bargain! Only $US23.60 each! Or $14 in reels...

Humbug.

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