Fair-Rite Products Corp.美国

Part Number: 2661302502 61 ROUND CABLE CORE – Digits 1 & 2 = Product Class – Digits 3 & 4 = Material Grade – Last digit 2 = Burnished (All cable cores have been burnished to remove the sharp edges) Fair-Rite offers a broad selection of ferrite EMI suppression cable cores in several materials with guaranteed minimum impedance specifications. For smaller suppression parts, refer to the section EMI Suppression Beads. Our Expanded Cable and Suppressor Kit (part number 0199000005) contains a selection of these suppression cores. The C dimension, the core length, can be modified to suit specific applications. 4.69 (g) + Test frequency The column “H (Oe)” gives for each bead the calculated dc bias field in oersted for 1 turn and 1 ampere direct current. The actual dc H field in the application is this value of “H” times the actual NI (ampere-turn) product. For the effect of the dc bias on the impedance of the bead material, see figures 18-23 in the application note “How to choose Ferrite Components for EMI Suppression”. Suppression cable cores are controlled for impedances only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%. Catalog Drawing Single turn impedance tests for 31, 43 and 46 material cores are performed on the E4991A/HP4291B Impedance Analyzer. The 61 material parts are tested on the E4991A / HP4291B Impedance Analyzer and 75 material parts are tested on the E4990A Impedance Analyzer. Cores are tested with the shortest practical wire length. A high frequency NiZn ferrite developed for a range of inductive applications up to 25 MHz. This material is also used in EMI applications for suppression of noise frequencies above 200 MHz. Excellent stability characteristics. EMI Suppression Beads Beads On Leads SM beads Wound Beads Multi-Aperture Cores Round Cable Snap-Its Toroids Rods Antenna/RFID Rods Round EMI Suppression Cores **** Characteristic curves are measured on standard Toroids (18/10/6 mm) at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.