Ferrite E-Core Suppliers in Australia

Quite a few E cores of various sizes at Rockby's flood sale at the moment. Probably many of them came from those other suppliers too.

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Do they have the flood sale items on the web? I checked out their site yesterday and didn't see any reference to a flood sale. I'll have another look. ... Steve

Not sure - best to get them on the phone and ask.

another

Just checked their site again - they have an ad for the sale, but it appears to be on-site only. (I used to work in Renver Rd, Clayton, about 35 years ago, as an apprentice panel-beater, before I discovered electronics, but nowadays I'm on the South coast of NSW, a bit far for a sale.) I'll do as you suggest and ring them in the morning, but it's harder on the phone to descibe exactly what you want. Thanks for the help, Clifford, I appreciate it.

In the meantime, I'm open to other suggestions for suppliers, if anyone reading this thread has any.

... Steve

:Can anyone point me in the direction of a (small volume) supplier of ferrite :E-cores in Australia. I'm after a small, N27 or similar, (frequency between :20kHz and 100kHz), 1" x 1" core, like Jaycar used to sell. I have a working :design using an old Jaycar core and need a supplier for 10 to 50 units at a :time. I think that Jaycar still sell pot cores in a similar ferrite, but the :window is too small for all of my windings. RS no longer stock this sort of :thing and neither do DSE or Altronics. If there's no one in Australia, :Mouser or Digikey probably have something, but I'd prefer to buy locally if :I can. : :Thanks in advance, :Steve. :

Might I suggest Farnell order code 200300 in N87 material. This material is typically used for 25KHz - 500KHz operation.

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Thanks, Ross, it looks pretty good. I'm not sure about the window size and whether or not I'll get all of my windings on it. The diagrams are a little cryptic. By the same token, I think that the relative inductance is higher with these materials than my original version, so I'll be able to get away with less turns. I might check out their, (Farnell's), range and see if something one size larger is available. Otherwise, I'll wind the main secondary in 0.2mm instead of 0.25mm. No difference, except that 0.25 is easier on my eyes for hand-winding prototypes.

... Steve

Cheers Terry

On Tue, 12 Feb 2008 18:45:54 +1100, "Steve" put finger to keyboard and composed:

- Franc Zabkar

ferrite

Thanks Franc, exactly what I wanted. Their EF25 is perfect. Incidentally, on another subject, I posted a final note to the "Cheap EPROM Eraser - March 2005" thread. My LED WAS in backwards too, but still lit. I traced the circuit and came to the conclusion that the LED/resistor combo double as a snubber to keep the transistor's collector voltage from rising too high during flyback.

... Steve

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Thanks, Terry, I checked out their site and they had no specs published, so I checked out Franc's suggestion, (Neosid Australia) and found what I was looking for. I'm just waiting to see if they're happy to sell small quantities, (10 off for now).

... Steve

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Problem solved. Ordered 10 units x EF25 from Neosid @ $3.50 each delivered. Better than I could have done overseas.

... Steve

Hello Steve,

I know you have now solved you problem, however this link may be useful for future reference:

Andy