1/2 C2F Radial Type Choke Coils 9.0 max. 10 min. 5.0 0.5 12 max. 0.6 0.1 DIMENSIONS (mm): * Tube 15 min. * L 330H ( UL Tube used ), L 390H ( PVC Tube used ) * Length of the terminal pins does not include solder tips. *Pin pitch to be measured from the root of the terminal. Electrical Characteristics TOKO Part No. C2F-A2R2M Inductance (H) 2.220% Test Freq. 100 kHz Qu min. 15 Test Freq. 7.96 MHz DCR ( ) max. 0.0095 DCI SRF (A) max. (MHz) min. 6.8 84 C2F-A2R7M 2.720% 100 kHz 15 7.96 MHz 0.0107 6.7 70 C2F-A3R3M 3.320% 100 kHz 15 7.96 MHz 0.0122 5.8 58 C2F-A3R9M 3.920% 100 kHz 15 7.96 MHz 0.0140 5.4 45 C2F-A4R7M 4.720% 100 kHz 15 7.96 MHz 0.0155 5.1 35 C2F-A5R6M 5.620% 100 kHz 15 7.96 MHz 0.0172 4.7 28 C2F-A6R8M 6.820% 100 kHz 15 7.96 MHz 0.0185 4.3 21 C2F-A8R2M 8.220% 100 kHz 15 7.96 MHz 0.0235 4.0 20 C2F-A100K 1010% 1 kHz 65 2.52 MHz 0.027 3.6 14 C2F-A120K 1210% 1 kHz 60 2.52 MHz 0.0315 3.1 12 C2F-A150K 1510% 1 kHz 60 2.52 MHz 0.036 2.8 11 C2F-A180K 1810% 1 kHz 60 2.52 MHz 0.0405 2.6 10 C2F-A220K 2210% 1 kHz 50 2.52 MHz 0.045 2.5 9.8 C2F-A270K 2710% 1 kHz 50 2.52 MHz 0.061 2.2 8.4 C2F-A330K 3310% 1 kHz 45 2.52 MHz 0.070 2.0 7.7 C2F-A390K 3910% 1 kHz 45 2.52 MHz 0.075 1.8 7.0 C2F-A470K 4710% 1 kHz 40 2.52 MHz 0.0865 1.7 6.0 C2F-A560K 5610% 1 kHz 40 2.52 MHz 0.12 1.5 5.6 C2F-A680K 6810% 1 kHz 35 2.52 MHz 0.13 1.4 5.0 C2F-A820K 8210% 1 kHz 35 2.52 MHz 0.15 1.2 4.3 C2F-A101K 10010% 1 kHz 35 796 kHz 0.18 1.1 4.0 C2F-A121K 12010% 1 kHz 25 796 kHz 0.20 1.0 3.6 C2F-A151K 15010% 1 kHz 25 796 kHz 0.26 0.96 3.3 C2F-A181K 18010% 1 kHz 20 796 kHz 0.30 0.88 3.1 C2F-A221K 22010% 1 kHz 20 796 kHz 0.41 0.78 2.6 C2F-A271K 27010% 1 kHz 20 796 kHz 0.46 0.72 2.4 C2F-A331K 33010% 1 kHz 15 796 kHz 0.53 0.66 2.3 C2F-A391K 39010% 1 kHz 15 796 kHz 0.63 0.62 2.2 C2F-A471K 47010% 1 kHz 15 796 kHz 0.71 0.56 2.0 C2F-A561K 56010% 1 kHz 15 796 kHz 0.88 0.50 1.8 2/2 TOKO Part No. C2F-A681K Inductance (H) 68010% Test Freq. 1 kHz Qu Min. 15 Test Freq. 796 kHz DCR ( ) max. 1.1 DCI (A) max. 0.46 SRF (MHz) ref. 1.5 C2F-A821K 82010% 1 kHz 15 796 kHz 1.2 0.42 1.4 C2F-A102K 100010% 1 kHz 25 252 kHz 1.5 0.38 1.3 C2F-A122K 120010% 1 kHz 30 252 kHz 1.9 0.34 1.2 C2F-A152K 150010% 1 kHz 30 252 kHz 2.2 0.32 1.0 C2F-A182K 180010% 1 kHz 30 252 kHz 2.7 0.28 0.98 C2F-A222K 220010% 1 kHz 30 252 kHz 3.4 0.26 0.84 C2F-A272K 270010% 1 kHz 45 252 kHz 4.3 0.22 0.77 C2F-A332K 330010% 1 kHz 45 252 kHz 5.0 0.21 0.70 C2F-A392K 390010% 1 kHz 45 252 kHz 6.0 0.19 0.67 C2F-A472K 470010% 1 kHz 45 252 kHz 7.2 0.17 0.52 C2F-A562K 560010% 1 kHz 45 252 kHz 8.2 0.15 0.49 C2F-A682K 680010% 1 kHz 45 252 kHz 10 0.14 0.45 C2F-A822K 820010% 1 kHz 45 252 kHz 13 0.13 0.42 C2F-A103K 1000010% 1 kHz 90 79.6 kHz 15 0.11 0.38 C2F-A123K 1200010% 1 kHz 90 79.6 kHz 18 0.10 0.35 C2F-A153K 1500010% 1 kHz 90 79.6 kHz 25 0.090 0.30 C2F-A183K 1800010% 1 kHz 90 79.6 kHz 30 0.080 0.26 C2F-A223K 2200010% 1 kHz 90 79.6 kHz 35 0.070 0.25 C2F-A273K 2700010% 1 kHz 90 79.6 kHz 47 0.065 0.23 C2F-A333K 3300010% 1 kHz 90 79.6 kHz 54 0.060 0.21 C2F-A393K 3900010% 1 kHz 65 79.6 kHz 71 0.055 0.18 C2F-A473K 4700010% 1 kHz 65 79.6 kHz 81 0.050 0.16 C2F-A563K 5600010% 1 kHz 65 79.6 kHz 92 0.045 0.15 C2F-A683K 6800010% 1 kHz 50 79.6 kHz 125 0.040 0.13 C2F-A823K 8200010% 1 kHz 50 79.6 kHz 142 0.035 0.12 C2F-A104K 10000010% 1 kHz 50 79.6 kHz 192 0.030 Testing Instrument Inductance: HP4284 or Equivalent. Q: HP4285A or Equivalent. D.C.R: Keithley 580 Micro Ohm Meter or Equivalent. S.R.F.: HP4395A or Equivalent. Rated Current: HP4284A, HP42841A, HPE3632A, HP34401A or Equivalent. -Idc 1: The Current when the Inductance decreases to 90% of initial value. (Ta=25C) -Idc 2: The Current when the temperature of inductor increases by 40C. (Ta=25C) The Rated Current indicates the smaller one between Idc 1 & Idc 2. 0.11 * Test Conditions of Inductance: 2.2H ~ 8.2H at 100kHz / 1V 10H ~ 100000H at 1kHz / 1V * Test Conditions of Unloaded Q: 2.2H ~ 8.2H at 7.96MHz / 1V 10H ~ 82H at 2.52MHz / 1V 100H ~ 820H at 796kHz / 1V 1000H ~ 8200H at 252kHz / 1V 10000H ~ 100000H at 79.6kHz / 1V TOKO INC. HK Coil DIVISION 45 HOI YUEN ROAD, YAU LEE CENTRE, 7/F., KWUN TONG, KOWLOON, HONG KONG. Tel: +852-2342 8131 Fax: +852-2341 9570