chip inductors C 1812ls series (4532) document 106-1 specifications subject to change without notice. document 106-1 revised 11/13/03 with inductance values up to 1000 h, these are our highest rated chip inductors. their ferrite core allows higher current ratings and lower dc resistance. these parts can be ordered with terminations that make them compliant with rohs standards. coilcraft designer?s kit c114 contains samples of all 5% tolerance parts. to order, contact coilcraft or purchase on-line at http://order.coilcraft.com . inductance 2 percent q test freq srf min 5 dcr max 6 i rms 7 part number 1 (h) tolerance 3 min 4 (mhz) (mhz) (ohms) (ma) 1812ls-123x_b_ 12 10, 5 42 2.5 55 2.0 310 1812ls-153x_b_ 15 10, 5 42 2.5 45 2.5 290 1812ls-183x_b_ 18 10, 5 45 2.5 37 2.8 270 1812ls-223x_b_ 22 10, 5 45 2.5 32 3.2 260 1812ls-273x_b_ 27 10, 5 45 2.5 27 3.6 240 1812ls-333x_b_ 33 10, 5 45 2.5 23 4.0 230 1812ls-393x_b_ 39 10, 5 45 2.5 19 4.5 210 1812ls-473x_b_ 47 10, 5 42 2.5 16 5.0 200 1812ls-563x_b_ 56 10, 5 42 2.5 13 5.5 190 1812ls-683x_b_ 68 10, 5 40 2.5 10 6.0 180 1812ls-823x_b_ 82 10, 5 40 2.5 9.0 7.0 170 1812ls-104x_b_ 100 10, 5 40 2.5 8.5 8.0 150 1812ls-124x_b_ 120 10, 5 33 0.79 8.5 11.5 135 1812ls-154x_b_ 150 10, 5 36 0.79 8.5 13.0 125 1812ls-184x_b_ 180 10, 5 36 0.79 8.0 14.2 120 1812ls-224x_b_ 220 10, 5 38 0.79 6.0 16.2 115 1812ls-274x_b_ 270 10, 5 38 0.79 5.0 20.5 105 1812ls-334x_b_ 330 10, 5 38 0.79 4.5 22.5 100 1812ls-394x_b_ 390 10, 5 38 0.79 3.5 24.5 90 1812ls-474x_b_ 470 10, 5 38 0.79 3.0 26.5 85 1812ls-564x_b_ 560 10, 5 33 0.79 2.0 28.5 75 1812ls-684x_b_ 680 10, 5 33 0.79 1.9 38.0 60 1812ls-824x_b_ 820 10, 5 30 0.79 1.6 41.0 55 1812ls-105x_b_ 1000 10, 5 30 0.79 1.5 44.0 50 2. inductance at 2.5 mhz measured using agilent/hp 4286a and coilcraft smd-a fixture with coilcraft-provided correlation pieces. inductance at 0.79 mhz measured using agilent/hp 4192a and coilcraft smd-b test fixture. 3. tolerances in bold are stocked for immediate shipment. 4. q read directly on agilent/hp 4192a lf impedance analyzer and coilcraft smd-b test fixture. 5. srf measured using agilent/hp 8753d network analyzer and coilcraft smd-d test fixture. 6. dcr measured on cambridge technology micro-ohmmeter. 7. average current for 15c temperature rise from 25c. 8. operating temperature range ? 40c to +85c. 9. electrical specifications at 25c. see qualification standards section for environmental and test data. see color coding section for part marking data. 1. when ordering, specify tolerance, termination and packaging codes: 1812ls-105x jbc tolerance: j = 5% k = 10% (table shows stock tolerances in bold.) termination: b = standard ag/pd/pt l = rohs compliant ag/pd/pt packaging: c =7 machine-ready reel. eia-481 embossed plastic tape (600 per full reel). b = less than full reel. in tape, but not machine-ready. to have a leader and trailer added ($25 charge), use code letter c instead. d =13 machine-ready reel. eia-481 embossed plastic tape. factory order only, not stocked (2200 per full reel).
1812ls (4532) chip inductors document 106-2 specifications subject to change without notice. document 106-2 revised 11/13/03 a max b max c max d ref e f g h i j 0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 4,95 3,81 3,43 1,78 2,54 0,64 3,25 3,05 1,14 3,00 a b overall f i i g d e terminal f j c h terminal wraparound: approx 0.015/0,38 both ends recommended land pattern typical q vs frequency typical l vs current 10000 1000 100 10 1 inductance (h) 10 dc current (ma) 100 1000 1000 h 330 h 100 h 33 h 12 h frequency (mhz) q factor 0.1 60 50 40 30 20 10 0 0.2 0.3 0.4 0.6 1 2 4 5 38 610 0.79 mhz 2.5 mhz 1000 h 560 h 82 h 270 h 33 h 18 h 12 h weight: 142 ? 171 mg tape and reel: 600/7 reel; 2200/13 reel 12 mm tape width for packaging data see tape and reel specifications section.
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