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Your cart is empty.FT 50 43 Ferrite Toroid Core 43 Material is used for EMI/RFI suppression in the 20 MHz to 250 MHz range. Inner Diameter: 0.281 inches Outer Diameter: 0.500 inches Height: 0.188 inches AL Value: 440 µH/100 turns
Ron Dyke
2025-09-04 14:32:23
worked for project just fine
R. Cushing
2025-08-27 12:39:12
I used one of these small toroidal cores recently to wind a 49:1 UNUN broadband RF transformer for an amateur radio receive only antenna. It functioned perfectly from about 2 MHz to 30 MHz (where I stopped the NanoVNA test). If you need good performance below 2 MHz, a different core material should be selected. Good buy.
Justin StAmour
2025-08-22 15:38:27
So there isn’t much to say. It’s just what you would expect if you order an FT50-43 toroid. If you have never seen one in person they may be smaller than you expect but not something that is impossible to work with. I’ve wound a couple and they do the thing. I’m using them for a very compact EFHW antenna.Let’s be honest, it’s a metal core ring, not much that can go wrong
Gale Smith
2025-07-04 12:49:45
I make 49-1 and 9-1 transformers out of these for portable qrp ham radio. They work like the big ones, just less weight and space when packing light, but at the expense of power handling. I have done ok with them at 10w, I think 20w would be pushing it.
Ernesto Sabogal Gomez
2025-05-20 13:56:50
I used them to build my own inductors.I needed 100uH and 300uH inductors, I assumed Al = 520; that gave me 15 turns and 24 turns respectively. Later I measured the inductors with a good LCR, the measured values were 112uH and 290uH; Q=40 at 100kHz.These are size 50, they are small so check before buying.
Xiu Wan
2025-04-02 13:51:16
Arrived heavily wrapped, and delivered in large bubble packet. All good and nothing damaged, looked genuine. Usual biz, AM transmitters and LW reception or baulns.
Shann L.
2025-03-28 12:28:25
Looks like someone ordered 10 took one and returned it. The tape on the bag shows evidence of being opened. I only got 9 of the 10 toroids I ordered. As they appear to be returned I hope I got the ones I ordered on not something else. How to you measure them and be sure.
Jessica Nusbaum
2025-02-05 10:26:47
I had a glitching servo.Wrapped the wire through one of these a few times...Like magic! Glitch gone!A must for any RC field kit.
Anonymous
2025-01-13 11:05:33
The diameter is correct, but when I built an LC oscillator using this toroid it was off frequency.... It's possible my test set up was off... However I just tested other toroids and had good results... Possible that the composition is mis-labelled?
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