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FAIR-RITE 5977002721 COATED FERRITE CORE, F-140-77C,TOROID, 77 mat'l (12 pieces), US $320 – Picture 0
FAIR-RITE 5977002721 COATED FERRITE CORE, F-140-77C,TOROID, 77 mat'l (12 pieces), US $320 – Picture 0

Fair-rite 5977002721 Coated Ferrite Core, F-140-77c,toroid, 77 Mat'l (12 Pieces)

US $320

  • Orange, California, United States
  • Jun 3rd
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FAIR-RITE 5977002701 FERRITE CORE / FAIR-RITE 5977002721 , COATED TOROID,  77 Material. Permeability 2000 You are buying a lot of (12 pieces).  Part Number: 5977002701 (uncoated) / 5977002721(coated) / F-140-77C Toroid Core Size: OD = 35.33mm (1.40 inch) x ID = 23 mm (0.90 inch) x HT= 12.7 mm (0.50 inch)   Material Grade: 77, Permeability of 2000 Le = Effective Magnetic Path Length : 8.9 cm  Ae =  Effective Cross Section Area : 0.79 cm2  Ve = Volume : 7.0 cm3 Al = Inductance Factor : 2250 nH  Initial Permeability 2000, Max Perm 6000, Max Flux Density @ 10 oer 4600 gauss, Residual Flux density 1150 gauss, Volume resistivity 100 ohms-cm, Curie temp 200 deg C RoHS Compliant Application / Uses :  Toroid core for power transformers in SMPS, Resonant circuit in 1 Khz to 2 Mhz, Wideband transformer in 500 Khz to 30 Mhz, RFI filters in 1 Mhz to 40 Mhz.  Widely used by amateur radio operators to filter out RFI noise in the 3 Mhz to 30 Mhz range by wrapping cables over the cores. Put in as many turns can the center hold can fit.  The coating is to increase the dielectric breakdown.

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