document number: 34152 for tec hnical questions, contact: magnetics@vishay.com www.vishay.com revision: 28-feb-11 1 wirewound, surface mount, molded inductors imch-1812 vishay dale note (1) rated dc current based on the maximum temperature rise, not to exceed 40 c at + 85 c ambient features ? molded construction provides superior strength and moisture resistance ? tape and reel packaging for automatic handling, 500/reel, eia-481 ? compatible with vapor phase, infrared and wave soldering methods ? compliant to rohs directive 2002/95/ec electrical specifications inductance range: 1 h to 330 h inductance tolerance: 10 % operating temperature: - 40 c to + 85 c storage temperature: - 40 c to + 100 c test equipment ? l & q: h/p 4285a ? srf: h/p 4286a ? dcr: h/p 34401 standard electrical specifications ind. (h) tol. test freq. (mhz) q min. srf min. (mhz) dcr max. ( ? ) rated dc current (ma) (1) l & q 1.0 10 % 7.96 10 200 0.11 1050 1.2 10 % 7.96 10 160 0.12 1000 1.5 10 % 7.96 10 130 0.15 950 1.8 10 % 7.96 10 100 0.16 900 2.2 10 % 7.96 10 60.0 0.18 850 2.7 10 % 7.96 10 60.0 0.20 800 3.3 10 % 7.96 10 45.0 0.22 750 3.9 10 % 7.90 10 40.0 0.24 700 4.7 10 % 7.96 10 35.0 0.3 650 5.6 10 % 7.96 10 30.0 0.3 650 6.8 10 % 7.96 10 28.0 0.4 600 8.2 10 % 7.96 10 25.0 0.4 600 10 10 % 2.52 10 22.0 0.5 550 12 10 % 2.52 10 21.0 0.6 500 15 10 % 2.52 10 20.0 0.7 450 18 10 % 2.52 10 19.0 0.8 400 22 10 % 2.52 10 18.0 0.9 370 27 10 % 2.52 10 16.0 1.2 330 33 10 % 2.52 10 14.0 1.4 300 39 10 % 2.52 10 12.0 1.6 280 47 10 % 2.52 10 11.5 1.9 260 56 10 % 2.52 10 11.0 2.2 240 68 10 % 2.52 10 10.0 2.6 220 82 10 % 2.52 10 9.0 3.5 200 100 10 % 0.796 20 8.0 4.0 180 120 10 % 0.796 20 6.5 4.5 160 150 10 % 0.796 20 7.0 6.5 140 180 10 % 0.796 20 5.5 7.5 120 220 10 % 0.796 20 5.5 9 120 270 10 % 0.796 20 5.0 11 100 330 10 % 0.796 20 4.0 13 90 dimensions in inches [millimeters] abc 0.177 0.012 [4.5 0.3] 0.126 0.012 [3.2 0.3] 0.126 0.012 [3.2 0.3] de 0.055 0.016 [1.4 0.4] 0.035 0.008 [0.9 0.2] part marking - inductance value a e c d b description imch-1812 22 h 10 % er e3 model inductance value inductance tolerance package code jedec lead (pb)-free standard global part number imch 1812 er 220 k product family size package code inductance value tol.
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