2944777721 Fair-Rite

Wound Beads (2944777721) Part Number: 2944777721 44 WOUND BEAD Explanation of Part Numbers: Digits 1 & 2 = Product Class Digits 3 & 4 = Material Grade Last digit 1 = Bulk Packed 4 = Taped and Reeled Six and eleven hole beads, in two NiZn materials, are available both as beads (product class 26) and wound with tinned copper wire in several winding configurations (product class 29). Wire used for winding is oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating. Recommended storage temperature and operating temperature is -55 C to 125 C Recommended Soldering Profile Packaging Options: Parts with a 1 as the last digit of the part number are supplied bulk packed. Wound beads with part numbers 29 666631 and 29 666651 can be supplied radially taped and reeled per IEC 60286-1 and EIA 468- B standards. For these taped and reeled wound beads the last digit of the part number is a 4. Taped and reeled wound beads are supplied 500 pieces on a 13 reel. For any wound bead requirement not listed in here, please contact our customer service group for availability and pricing. Catalog Drawing 3D Model Weight: 3.9 (g) Dim mm mm tol nominal inch inch misc. Winding Information A 10 0.25 0.394 Turns Tests Wire Size 1st Wire Length 2nd Wire Length B 0.9 +0.15 0.038 0.65 38.0 3.0 28.0 3.0 2 x 2 22 AWG (1.496) (1.102) C 10 0.25 0.394 D 7.5 Ref 0.295 RefChart Legend + Test frequency A turn is defined as a single pass through a hole. Typical Impedance () 1 MHz 86 + 10 MHz 425 + 50 MHz 900 + 100 MHz 985 200 MHz 755 Beads are controlled for impedance limits only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is listed on our catalog drawing. Catalog Drawing The 44 material beads and wound beads are tested on the E4990A Impedance Meter. The 61 material parts on the E4991A / HP4291B Impedance Analyzer.