Document 248-1 1812DPS Coupled Inductors for xDSL • Coupled inductor optimized for xDSL filtering applications • Can be used as a common mode choke, 1:1 transformer or in SEPIC applications Core material Ferrite Terminations RoHS compliant gold over nickel over moly-manganese. Other terminations available at additional cost. Weight 0.30 – 0.36 g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Temperature Coefficient of Inductance (TCL) +200 to +700 ppm/°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 500/7″reel; 2000/13″ reel Plastic tape: 12 mm wide, 0.25 mm thick, 8 mm pocket spacing, 3.9 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 1812DPS-102ML_ 1812DPS-222ML_ 1812DPS-472ML_ 1812DPS-103ML_ 1812DPS-153ML_ 1812DPS-223ML_ 1812DPS-393ML_ 1812DPS-473ML_ L DCR SRF ±20%2 Q max min Isat4 Irms5 (µH) min3 (Ohms) (MHz) (mA) (mA) 1.0 2.2 4.7 10 15 22 39 47 38 29 43 35 37 38 39 40 0.20 0.33 0.41 0.74 0.96 1.84 2.60 2.66 285 175 102 74 65 54 5.7 4.8 2400 1500 1500 800 700 500 450 400 2100 1200 1000 780 710 530 420 390 1. When ordering, please specify termination and packaging codes: 1812DPS-473MLC Termination: L = Silver-palladium-platinum-glass frit terminations Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 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 (2200 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. Current that causes a 40°C temperature rise from 25°C ambient. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 248-1 Revised 10/06/08 Document 248-2 1812DPS Coupled Inductors for xDSL Typical L vs Frequency Typical Q vs Frequency Irms Derating B E 4 C D 1 120 1 4 2 3 110 A F 90 H 80 G 70 60 0.015 0,38 50 1 0.057 1,45 4 40 25°C Percent of rated Irms 100 30 0.020 0,51 Pad Detail 0.115 2,92 0.020 0,51 20 2 10 0 -40 -20 0 20 40 60 80 100 120 140 0.048 1,22 Ambient temperature (°C) 3 0.015 ref 0,38 0.018 0,46 Recommended Land Pattern A max 0.231 5,87 B max 0.196 4,98 C max 0.150 3,81 D E ref ref 0.107 0.100 2,72 2,54 Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 0.040 min 1,02 F ref 0.178 4,52 G min 0.04 1,02 Document 248-2 0.030 ±0.002 0,76 ±0,05 H 0.03 inches 0,76 mm Revised 10/06/08