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Document 498-1
SMT Power Inductors - SLC1049 Series
* Designed foruse in multi-phase VRM/VRD regulators and high current/high frequency DC/DC converters. * Requires only 70 mm2 of board space; can handle up to 61 A
Core material Ferrite Core and winding loss See www.coilcraft.com/coreloss Terminations RoHS compliant matte tin over nickel over copper. Other terminations available at additional cost. Weight 1.25 - 1.30 g Ambient temperature -40C to +85C with Irms current, +85C to +125C with derated current Storage temperature Component: -40C to +125C. Packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 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 250/7reel; 1000/13 reel Plastic tape: 24 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.08 mm pocket depth PCB washing Only pure water or alcohol recommended
Part number1
SLC1049-750ML_ SLC1049-101ML_ SLC1049-121ML_ SLC1049-151ML_
0.271 max 6,88
L SRF 20%2 DCR 5%3 typ4 Isat5 Irms6 (H) (mOhms) (MHz) (A) (A)
0.075 0.100 0.125 0.150 0.273 0.273 0.273 0.273 200 145 140 133 61.0 50.0 37.0 30.0 43.0 43.0 43.0 43.0
1. When ordering, please specify termination and packaging codes: SLC1049-151KLC Termination: L = RoHS compliant matte tin over nickel over copper. 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 (250 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 (1000 per full reel). Factory order only, not stocked. 2. Inductance tested at 100 kHz, 0.1 Vrms using an Agilent/HP 4263B LCR meter or equivalent. 3. DCR is measured on a micro-ohmmeter at points indicated in the dimensional diagram. 4. SRF measured with coils connected in series using an Agilent/HP 8753ES network analyzer or equivalent. 5. DC current at which the inductance drops 20% (typ) from its value without current. 6. Current that causes a 40C temperature rise from 25C ambient. 7. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering.
Dash number 0.401 max 10,20
XXX
X
Internal code
Points used for measuring DCR 0.203 max 5,16 0.118 3,00
Recommended Land Pattern
0.100 min 2,54
0.311 7,90 0.130 3,30
inches mm
Dimensions are in
0.148 3,76
Specifications subject to change without notice. Please check our website for latest information.
Document 498-1
Revised 10/20/08
(c) Coilcraft, Inc. 2009
Document 498-2
SMT Power Inductors - SLC1049 Series
L vs Current
0.20 0.150 H 0.15 0.15 0.125 H 0.100 H 0.10 0.075 H
L vs Frequency
0.20 0.150 H
Inductance (H)
Inductance (H)
0.125 H 0.100 H 0.10 0.075 H
0.05
0.05
0 0.1 1 10 100
0 0.1 1 10 100
Current (A)
Frequency (MHz)
ESR vs Frequency
50
Typical Temperature Rise vs Current
80
Equivalent Series Resistance (Ohms)
40
Temperature rise (from 25C)
70 60 50 40 30 20 10 0
30
0.150 H 0.125 H
0.100 H 0.075 H
20
10
0 0.1 1 10 100 1000
0
10
20
30
40
50
60
70
Frequency (MHz)
Current (A rms)
Irms Derating
120 110
Percent of rated current
100 90 80 70 60 50 40 20 10 0 -40 -20 0 20 40 60 80 100 120 140
Ambient temperature (C)
Specifications subject to change without notice. Please check our website for latest information. Document 498-2 Revised 10/20/08
(c) Coilcraft, Inc. 2009
25C
30

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