specifications subject to change without notice. please check our website for latest information. 1812dps coupled inductors for xdsl document 248-1 document 248-1 revised 02/07/05 the 1812dps series features a unique dual winding configuration that provides two balanced coupled induc- tors in a single package. this increases circuit efficiency, reduces component count and conserves valuable board space. this magnetically shielded part is optimized for various xdsl filtering applications. its small size and low profile make it particularly attractive for central office equipment. these parts can be ordered with terminations that make them compliant with rohs standards. in addition to the standard inductance values shown, coilcraft can customize these inductors to help achieve specific corner frequencies. part number 1 inductance 2 q dcr max srf min i sat 4 i rms 5 standard rohs compliant 20% (h) min 3 (ohms) (mhz) (ma) (ma) 1812dps-102m_ 1812dps-102ml_ 1.0 38 0.20 285 2400 2100 1812dps-222m_ 1812dps-222ml_ 2.2 29 0.33 175 1500 1200 1812dps-472m_ 1812dps-472ml_ 4.7 43 0.41 102 1500 1000 1812dps-103m_ 1812dps-103ml_ 10 35 0.74 74 800 780 1812dps-153m_ 1812dps-103ml_ 15 37 0.96 65 700 710 1812dps-223m_ 1812dps-223ml_ 22 38 1.84 54 500 530 1812dps-393m_ 1812dps-393ml_ 39 39 2.60 5.7 450 420 1812dps-473m_ 1812dps-473ml_ 47 40 2.66 4.8 400 390 1. when ordering, please specify packaging code: 1812dps-473m c 1812dps-473ml c packaging: c =7 machine-ready reel. eia-481 embossed plastic tape (500 parts 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 (2500 parts per full reel). 2. per winding. tested at 100 khz, 0.1 vrms, 0 adc. 3. q measured at 1 mhz. 4. dc current at which the inductance drops 10% (typ) from its value without current. 5. average current for a 40c rise above 25c ambient. 6. operating temperature range -40c to +85c. 7. electrical specifications at 25c. see qualification standards section for environmental and test data.
specifications subject to change without notice. please check our website for latest information. document 248-2 document 248-2 revised 02/07/05 1812dps coupled inductors for xdsl typical l vs frequency typical q vs frequency a max b max c max d ref e ref f ref g min h 0.231 0.196 0.150 0.107 0.100 0.178 0.04 0.03 5,87 4,98 3,81 2,72 2,54 4,52 1,02 0,76 0.018 0,46 0.057 1,45 4 1 a b e h g f c d 0.048 1,22 0.102 2,59 recommended land pattern schematic 2 1 4 3 terminations: nickel/gold over moly-manganese tape and reel: 500/7 reel; 2000/13 reel 12 mm tape width for packaging data see tape and reel specifications section.
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