Document 1303-1
Shielded PowerInductors – SLR1190
• Tight DCR tolerance for inductor-DCR-based current sensing circuit
• Excellent current handling • 11.2 × 10.3 × 9.0 mm surface mount package • Designed for use in multi-phase VRM/VRD/EVRD regulators Core material Ferrite Weight 4.1 – 4.2 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). Derating. 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; 450/13″ reel; Plastic tape: 24 mm wide, 0.5 mm thick, 12 mm pocket spacing, 8.35 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)
SLR1190-151KE_ SLR1190-201KE_ SLR1190-231KE_ SLR1190-251KE_ SLR1190-271KE_
150 200 230 250 270
SLR1190-311KE_ SLR1190-371KE_
310 370
DCR ±10% (mOhms)
0.43 0.43 0.43 0.43 0.43
0.43 0.43
SRF typ
Isat (A)3
(MHz) at 25°C at 100°C at 125°C
Irms (A)4 20°C rise 40°C rise
95 100 58 86 51 72 50 66 49 58
87.5 82.5 68.5 63.5 62.0 56.5 52.0 48.5 50.0 45.5
58 79 58 79 58 79 58 79 58 79
43 52 42.0 38.5 58 79 35 41 32.5 30.5 58 79
1. When ordering, please specify packaging code:
SLR1190-371KEC
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 (450 parts per full reel).
2. Inductance at 100 kHz, 0.1 Vrms, 0 Adc. 3. DC current that causes a 20% (typ) inductance drop from its value
without current. Click for temperature derating information. 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. Click for temperature derating information. 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.
US +1-847-639-6400
[email protected] UK.