Multiple single turn or multi-turn printed circuit EMI suppression beads are available in two Fair-Rite materials. The broadband 44 material and in the high frequency 52 material grade. • PC Beads can be supplied with lower component heights "C". Also, the wire length "F" can be modified to specific requirements. • Wires are oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating. Wires on top of the beads are covered with a layer of epoxy. • PC Beads are controlled for impedance only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%. • The PC Beads in 44 material are measured on the 4193A Vector Impedance Analyzer. The 52 PC Beads are tested for impedance on the 4291A RF Impedance Analyzer. • Recommended operating and storage temperature for the PC Beads is -55 oC to +125 oC. • Performance curves for these suppression components are on our web site. • Explanation of Part Numbers: Digits 1&2 = product class, 3&4 = material grade and last digit 1 = standard wire length 2.4 mm (0.095") minimum, 2 = wire length 3.1 mm (0.122”) minimum. Legend Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 42 Phone: (888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 • (888) 324-7748 (888) 337-7483 E Web: www.fair-rite.com -mail: [email protected] Legend Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches. ) Test frequency + Broadband Frequencies 10-300 MHz (44 material) Part Number Fig. 2944776101 1 2944778101 2 2944778301 3 2944770301 4 A 8.00 -0.35 0.308 11.20 -0.50 0.430 11.20 -0.50 0.430 13.45 ±0.25 0.530 B 7.60 -0.50 0.290 5.75 -0.50 0.216 11.20 -0.50 0.430 11.20 -0.50 0.430 C 11.80 Max 0.464 Max 11.80 Max 0.464 Max 11.80 Max 0.464 Max 11.80 Max 0.464 Max D 2.54 ±0.10 0.100 2.54 ±0.10 0.100 2.54 ±0.10 0.100 2.54 ±0.10 0.100 E 2.54 ±0.10 0.100 2.54 ±0.10 0.100 7.60 ±0.20 0.300 7.60 ±0.20 0.300 F G 2.40 Min 0.095 Min 2.40 Min 0.095 Min 2.40 Min 0.095 Min 2.40 Min 0.095 Min 0.65 22 AWG 0.65 22 AWG 0.65 22 AWG 0.65 22 AWG Wt. (g) 10 Impedance (Ω) 25 100 250 + + MHz MHz MHz MHz 2.60 115 188 288 305 2.70 115 188 288 305 6.00 142 219 338 335 7.40 142 219 338 335 Higher Frequencies 250-1000 MHz (52 material) Part Number Fig. 2952776101 1 2952778301 3 A B 8.00 -0.35 7.60 -0.50 0.308 0.290 11.20 -0.50 11.20 -0.50 0.430 0.430 C 11.80 Max 0.464 Max 11.80 Max 0.464 Max D 2.54 ±0.10 0.100 2.54 ±0.10 0.100 E 2.54 ±0.10 0.100 7.60 ±0.20 0.300 F G 2.40 Min 0.095 Min 2.40 Min 0.095 Min 0.65 22 AWG 0.65 22 AWG Wt. (g) 100 Impedance (Ω) 250 500 1000 + + MHz MHz MHz MHz 2.60 270 380 345 250 6.00 320 460 395 300 Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 • (888) 324-7748 (888) 337-7483 E Web: www.fair-rite.com -mail: [email protected] 43