API_newlayouts_single:APIcatalog_newlayouts 8/27/10 10:05 AM Page 121 r pp Su es CF SERIES rs so Cylindrical EMI Suppression Ferrites API's Cylindrical EMI Suppression ferrites provide a cost effective means of reducing common and differential mode EMI. Used to suppress common mode EMI on the internal and external cable assemblies of electronic equipment. Select a ferrite with an inner diameter most closely matching the outer diameter of the wires to be filtered. Features • Wide range of sizes with inner diameters from 1.5 mm (0.059 inches) to 23 mm (0.905 inches) • Precision formed smooth surfaces prevent damage to wire insulation • Available in API-1 and API-2 material. • Custom designs available Applications • Internal and external computer data and power cables. **Note – Impedance Testing Impedance is typical, measurement using HP4191A. For CF1-4*1.5*10 through CF2-4.6*1.85*6, based on 1⁄2 turn (4.0") 32 AWG wire. For CF1-7.35*5.1*10 and above, based on 1⁄2 turn (4.0") 19 AWG wire. PART NUMBER CF1-4*1.5*10 CF2-4*1.5*10 CF1-4*2*10 CF2-4*2*10 CF1-4.6*1.85*6 CF2-4.6*1.85*6 CF1-7.35*5.1*10 CF2-7.35*5.1*10 CF1-9.5*4.8*20 CF2-9.5*4.8*20 CF1-10.5*5.5*20 CF2-10.5*5.5*20 CF1-12*7.3*15 CF2-12*7.3*15 CF1-14.2*6.35*28.5 CF2-14.2*6.35*28.5 CF1-16*9*17 CF2-16*9*17 CF1-17.5*9.5*28.5 CF2-17.5*9.5*28.5 CF1-21*13.2*21 CF2-21*13.2*21 CF1-26*13*28.5 CF2-26*13*28.5 CF1-28*15.6*7.5 CF2-28*15.6*7.5 CF1-31*19*10 CF2-31*19*10 CF1-36*23*15 CF2-36*23*15 IMPEDANCE** @ 25 @ 100 @ 300 MHz MHz MHz (Min.) (Typ.) (Typ.) 50 55 40 40 35 35 23 23 70 80 65 70 40 40 115 125 50 55 95 95 55 55 100 110 28 28 30 30 40 40 135 116 102 86 89 77 68 63 171 142 161 134 107 89 280 230 130 109 217 172 136 115 235 198 85 76 91 83 113 101 300 269 282 255 261 237 217 214 263 251 273 261 273 242 302 210 281 257 310 296 309 305 325 316 313 286 232 320 384 369 DIMENSION A INCHES mm 0.157±.007 0.157±.007 0.157±.007 0.157±.007 0.181±.007 0.181±.007 0.289±.011 0.289±.011 0.374±.011 0.374±.011 0.413±.015 0.413±.015 0.472±.019 0.472±.019 0.559±.019 0.559±.019 0.629±.019 0.629±.019 0.688±.023 0.688±.023 0.826±.023 0.826±.023 1.023±.027 1.023±.027 1.102±.031 1.102±.031 1.220±.031 1.220±.031 1.417±.031 1.417±.031 4.0±0.2 4.0±0.2 4.0±0.2 4.0±0.2 4.6±0.2 4.6±0.2 7.35±0.3 7.35±0.3 9.5±0.3 9.5±0.3 10.5±0.4 10.5±0.4 12.0±0.5 12.0±0.5 14.2±0.5 14.2±0.5 16.0±0.5 16.0±0.5 17.5±0.6 17.5±0.6 21.0±0.6 21.0±0.6 26.0±0.7 26.0±0.7 28.0±0.8 28.0±0.8 31.0±0.8 31.0±0.8 36.0±0.8 36.0±0.8 DIMENSION B INCHES mm 0.059±.005 0.059±.005 0.078±.007 0.078±.007 0.072±.007 0.072±.007 0.200±.007 0.200±.007 0.188±.007 0.188±.007 0.216±.007 0.216±.007 0.287±.011 0.287±.011 0.250±.011 0.250±.011 0.354±.011 0.354±.011 0.374±.011 0.374±.011 0.519±.019 0.519±.019 0.511±.019 0.511±.019 0.614±.019 0.614±.019 0.748±.023 0.748±.023 0.905±.023 0.905±.023 1.5±0.15 1.5±0.15 2.0±0.2 2.0±0.2 1.85±0.2 1.85±0.2 5.1±0.2 5.1±0.2 4.8±0.2 4.8±0.2 5.5±0.2 5.5±0.2 7.3±0.3 7.3±0.3 6.35±0.3 6.35±0.3 9.0±0.3 9.0±0.3 9.5±0.3 9.5±0.3 13.2±0.5 13.2±0.5 13.0±0.5 13.0±0.5 15.6±0.5 15.6±0.5 19.0±0.6 19.0±0.6 23.0±0.6 23.0±0.6 DIMENSION C INCHES mm 0.393±.015 0.393±.015 0.393±.015 0.393±.015 0.236±.011 0.236±.011 0.393±.015 0.393±.015 0.787±.023 0.787±.023 0.787±.023 0.787±.023 0.590±.019 0.590±.019 1.122±.031 1.122±.031 0.669±.023 0.669±.023 1.122±.031 1.122±.031 0.826±.023 0.826±.023 1.122±.031 1.122±.031 0.295±.011 0.295±.011 0.393±.015 0.393±.015 0.590±.019 0.590±.019 10.0±0.4 10.0±0.4 10.0±0.4 10.0±0.4 6.0±0.3 6.0±0.3 10.0±0.4 10.0±0.4 20.0±0.6 20.0±0.6 20.0±0.6 20.0±0.6 15.0±0.5 15.0±0.5 28.5±0.8 28.5±0.8 17.0±0.6 17.0±0.6 28.5±0.8 28.5±0.8 21.0±0.6 21.0±0.6 28.5±0.8 28.5±0.8 7.50±0.3 7.50±0.3 10.0±0.4 10.0±0.4 15.0±0.5 15.0±0.5 270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: [email protected] • www.delevan.com 1/2009 API_newlayouts_single:APIcatalog_newlayouts 8/27/10 10:05 AM Page 122 es rs so Cylindrical EMI Suppression Ferrites r pp Su CF SERIES For more detailed graphs, contact factory 270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: [email protected] • www.delevan.com 1/2009