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SMT Power Inductors – SD43 Series Document 356-1 Document 356-1 Revised 12/12/14 Part Inductance2 DCR max SRF typ3 Isat (A)4 Irms (A)5 number 1 (µH) (mOhm) (MHz) 10% drop 20% drop 30% drop 20°C rise 40°C rise 1. When ordering, please specify packaging code: SD43-683KLC 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. Factory order only, not stocked (2000 parts per full reel). 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4284A impedance analyzer. 3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD -D test fixture.
4 DC current at which the inductance drops the specified amount from its
value without current. 5. Current the causes the specified temperature rise from25°C ambient. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Core material Ferrite Terminations RoHS compliant tin-silver over tin over nickel over silver. Weight 0.17 – 0.20 mg Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +85°C. Tape and reel 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 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, 0.35 mm thick, 8 mm pocket spacing, 3.4 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf.
- Rugged, cost-effective power inductors
- Excellent current handling; low DCR
- Values greater than 27 µH are 10% tolerance
SMT Power Inductors – SD43 Series Document 356-2 Revised 12/12/14 Document 356-2 Typical L vs FrequencyTypical L vs Current 0.1 100 1000 0.01 0.1 101 Inductance (µH) Current (A) 8.2 µH 1.0 µH 3.3 µH 27 µH 68 µH 0.1 100 1000 0.01 0.1 101 Inductance (µH) Frequency (MHz) 8.2 µH 1.0 µH 3.3 µH 27 µH 68 µH 0.185 4,70 0.136 3,45 0.165 4,20 0.063 1,60 0.051 1,30 0.061 1,55 0.102 2,60 0.085 2,15 0.129 3,28 max max max Recommended Land Pattern XXX Dimensions are in inches mm -40 -20 02 04 06 08 0 100 140120 Ambient temperature (°C) 120 110 100 25°C Pe rcent of rated rmsI Irms Derating