srf minimum (mhz) dash number* mil dash # inductance (?) tolerance q minimum test frequency (mhz) dc resistance maximum (ohms) current rating maximum (ma) 2200 2000 1800 1600 1500 1400 1300 1200 1100 1000 900 800 750 700 630 530 470 420 390 360 330 310 300 290 280 0.04 0.05 0.06 0.07 0.08 0.10 0.11 0.14 0.17 0.22 0.27 0.30 0.35 0.40 0.50 0.70 0.90 1.1 1.3 1.5 1.8 2.0 2.2 2.4 2.6 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 450 400 350 320 300 280 260 240 220 200 180 160 150 130 120 110 100 90 70 60 50 45 40 37 35 55 60 60 60 65 65 65 65 65 70 70 70 70 60 60 60 60 60 60 60 60 60 60 60 60 ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?0% ?% ?% ?% ?% ?% ?% ?% ?% ?% ?% ?% ?% ?% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 0.10 0.12 0.15 0.18 0.22 0.27 0.33 0.39 0.47 0.56 0.68 0.82 1.0 1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 10.0 military speci?ations ms-21422 (lt4k) physical parameters inches millimeters a 0.200 to 0.230 5.08 to 5.84 b 0.190 to 0.210 4.83 to 5.33 c 0.090 to 0.110 2.29 to 2.79 d 0.090 to 0.110 2.29 to 2.79 e 1.00 min. 25.40 min. f 0.0185 to 0.0215 0.47 to 0.55 current rating at 90? ambient 35? rise operating temperature range 55? to +125? maximum power dissipation at 90? 0.2 w weight max. (grams) 0.5 core material iron lead size awg #24 tcw note inductance measured .25?from body packaging bulk only made in the u.s.a. ms21422? series 2020 iron core (lt4k) -00k -02k -04k -06k -08k -10k -12k -14k -16k -18k -20k -22k -24j -26j -28j -30j -32j -34j -36j -38j -40j -42j -44j -46j -48j parts listed above are qpl/mil quali?d optional tolerances: j = 5% h = 3% g = 2% f = 1% *complete part # must include series # plus the dash # for further surface ?ish information, refer to technical section of this catalog. 2020r 2020 radial toroidal inductors m i l i t a r y a p p r o v e d series page 60 www . delevan . com e-mail: apisales@delevan . com 270 quaker rd., east aurora ny 14052 ? phone 716-652-3600 ? fax 716-652-4814 4/2005 rf inductors
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