1/2 c2f radial type choke coils dimensions (mm): * l 330 h ( ul tube used ), l 390 h ( 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. inductance (h) te st freq. qu min. te st freq. dcr ( ? ? ? ? ) max. dci (a) max. srf (mhz) min. c2f-a2r2m 2.2 20% 100 khz 15 7.96 mhz 0.0095 6.8 84 c2f-a2r7m 2.7 20% 100 khz 15 7.96 mhz 0.0107 6.7 70 c2f-a3r3m 3.3 20% 100 khz 15 7.96 mhz 0.0122 5.8 58 c2f-a3r9m 3.9 20% 100 khz 15 7.96 mhz 0.0140 5.4 45 c2f-a4r7m 4.7 20% 100 khz 15 7.96 mhz 0.0155 5.1 35 c2f-a5r6m 5.6 20% 100 khz 15 7.96 mhz 0.0172 4.7 28 c2f-a6r8m 6.8 20% 100 khz 15 7.96 mhz 0.0185 4.3 21 c2f-a8r2m 8.2 20% 100 khz 15 7.96 mhz 0.0235 4.0 20 c2f-a100k 10 10% 1 khz 65 2.52 mhz 0.027 3.6 14 c2f-a120k 12 10% 1 khz 60 2.52 mhz 0.0315 3.1 12 c2f-a150k 15 10% 1 khz 60 2.52 mhz 0.036 2.8 11 c2f-a180k 18 10% 1 khz 60 2.52 mhz 0.0405 2.6 10 c2f-a220k 22 10% 1 khz 50 2.52 mhz 0.045 2.5 9.8 c2f-a270k 27 10% 1 khz 50 2.52 mhz 0.061 2.2 8.4 c2f-a330k 33 10% 1 khz 45 2.52 mhz 0.070 2.0 7.7 c2f-a390k 39 10% 1 khz 45 2.52 mhz 0.075 1.8 7.0 c2f-a470k 47 10% 1 khz 40 2.52 mhz 0.0865 1.7 6.0 c2f-a560k 56 10% 1 khz 40 2.52 mhz 0.12 1.5 5.6 c2f-a680k 68 10% 1 khz 35 2.52 mhz 0.13 1.4 5.0 c2f-a820k 82 10% 1 khz 35 2.52 mhz 0.15 1.2 4.3 c2f-a101k 100 10% 1 khz 35 796 khz 0.18 1.1 4.0 c2f-a121k 120 10% 1 khz 25 796 khz 0.20 1.0 3.6 c2f-a151k 150 10% 1 khz 25 796 khz 0.26 0.96 3.3 c2f-a181k 180 10% 1 khz 20 796 khz 0.30 0.88 3.1 c2f-a221k 220 10% 1 khz 20 796 khz 0.41 0.78 2.6 c2f-a271k 270 10% 1 khz 20 796 khz 0.46 0.72 2.4 c2f-a331k 330 10% 1 khz 15 796 khz 0.53 0.66 2.3 c2f-a391k 390 10% 1 khz 15 796 khz 0.63 0.62 2.2 c2f-a471k 470 10% 1 khz 15 796 khz 0.71 0.56 2.0 c2f-a561k 560 10% 1 khz 15 796 khz 0.88 0.50 1.8 5.0 0.5 * tube 9.0 max. 12 max. 10 min. 15 min. 0.6 0.1
2/2 toko part no. inductance (h) te st freq. qu min. te st freq. dcr ( ? ? ? ? ) max. dci (a) max. srf (mhz) ref. c2f-a681k 680 10% 1 khz 15 796 khz 1.1 0.46 1.5 c2f-a821k 820 10% 1 khz 15 796 khz 1.2 0.42 1.4 c2f-a102k 1000 10% 1 khz 25 252 khz 1.5 0.38 1.3 c2f-a122k 1200 10% 1 khz 30 252 khz 1.9 0.34 1.2 c2f-a152k 1500 10% 1 khz 30 252 khz 2.2 0.32 1.0 c2f-a182k 1800 10% 1 khz 30 252 khz 2.7 0.28 0.98 c2f-a222k 2200 10% 1 khz 30 252 khz 3.4 0.26 0.84 c2f-a272k 2700 10% 1 khz 45 252 khz 4.3 0.22 0.77 c2f-a332k 3300 10% 1 khz 45 252 khz 5.0 0.21 0.70 c2f-a392k 3900 10% 1 khz 45 252 khz 6.0 0.19 0.67 c2f-a472k 4700 10% 1 khz 45 252 khz 7.2 0.17 0.52 c2f-a562k 5600 10% 1 khz 45 252 khz 8.2 0.15 0.49 c2f-a682k 6800 10% 1 khz 45 252 khz 10 0.14 0.45 c2f-a822k 8200 10% 1 khz 45 252 khz 13 0.13 0.42 c2f-a103k 10000 10% 1 khz 90 79.6 khz 15 0.11 0.38 c2f-a123k 12000 10% 1 khz 90 79.6 khz 18 0.10 0.35 c2f-a153k 15000 10% 1 khz 90 79.6 khz 25 0.090 0.30 c2f-a183k 18000 10% 1 khz 90 79.6 khz 30 0.080 0.26 c2f-a223k 22000 10% 1 khz 90 79.6 khz 35 0.070 0.25 c2f-a273k 27000 10% 1 khz 90 79.6 khz 47 0.065 0.23 c2f-a333k 33000 10% 1 khz 90 79.6 khz 54 0.060 0.21 C2F-A393K 39000 10% 1 khz 65 79.6 khz 71 0.055 0.18 c2f-a473k 47000 10% 1 khz 65 79.6 khz 81 0.050 0.16 c2f-a563k 56000 10% 1 khz 65 79.6 khz 92 0.045 0.15 c2f-a683k 68000 10% 1 khz 50 79.6 khz 125 0.040 0.13 c2f-a823k 82000 10% 1 khz 50 79.6 khz 142 0.035 0.12 c2f-a104k 100000 10% 1 khz 50 79.6 khz 192 0.030 0.11 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. * 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 45 hoi yuen road, yau lee centre, 7/f., kwun tong, kowloon, hong kong. tel: +852-2342 8131 fax: +852-2341 9570 hk coil division toko inc.
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