Document 1306-1
Shielded PowerInductors – SLR1075
• Tight DCR tolerance for inductor-DCR-based current sensing circuits
• Excellent current handling, up to 93 A • 10.4 × 8.0 × 7.4 mm surface mount package • Designed for use in multi-phase VRM/VRD/EVRD regulators Core material Ferrite Weight 3.5 – 3.6 g Environmental RoHS compliant, halogen free Terminations RoHS compliant matte tin over nickel over copper. Ambient temperature –40°C to +85°C with (40°C rise) Irms current. Maximum part temperature +125°C (ambient + temp rise). Storage temperature Component: –40°C to +125°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 100/7″ reel; 500/13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick, 12 mm pocket spacing, 7.75 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf.
Part number1
Inductance2 ±10% (nH)
SLR1075-121KE_ SLR1075-151KE_ SLR1075-171KE_ SLR1075-221KE_ SLR1075-231KE_
120 150 170 215 230
SLR1075-271KE_ SLR1075-301KE_
270 300
DCR ±7% (mOhms)
0.29 0.29 0.29 0.29 0.29
0.29 0.29
SRF typ
Isat (A)3
(MHz) at 25°C at 100°C at 125°C
Irms (A)4 20°C rise 40°C rise
59 93.0 78.5 72.0 48 72.0 59.0 54.0 44 65.0 51.5 48.0 36 53.0 40.0 37.0 35 49.0 36.5 33.5
50 67 50 67 50 67 50 67 50 67
30 41.0 32.0 29.5 50 67 27 36.0 26.5 24.0 50 67
1. When ordering, please specify packaging code:
SLR1075-301KEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (100 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 (500 parts per full reel).
2. Inductance at 100 kHz, 0.1 Vrms, 0 Adc. 3. DC current that causes an inductance drop of 20% (typ) from its value
without current. 4. Current that causes the specified temperature rise from 25°C ambient.
This information is for reference only and does not represent absolute maximum ratings. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Irms Testing
Irms testing was performed on 0.75 inch wide × 0.25 inch thick copper traces in still air. Temperature rise is highly dependent on many factors including pcb land pattern, trace size, and proximity to other components. Therefore temperature rise should be verified in application conditions.
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