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Document 1428-1
Shielded Power Inductors
–
SLR4040
Halogen
Free
• Tight DCR tolerance for inductor-DCR-based current
sensing circuits
• Excellent current handling, up to 78 A
• 4.0 × 4.0 × 4.0 mm surface mount package
• Designed for use in multi-phase VRM/VRD/EVRD regulators
Core material Ferrite
Weight 2.4 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)
Packaging 500/7″ reel; 2000/13″ reel; Plastic tape: 12 mm wide,
0.35 mm thick, 8 mm pocket spacing, 4.0 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Isat (A)4
at 100°C
Irms (A)5
20°C rise 40°C rise
Inductance2
1ꢁꢀ (nꢂ)
DCR 10ꢀ3
(mOhms)
SRF typ
(Mꢂz)
Part number1
at 2ꢁ°C
at 12ꢁ°C
SLR4040-220LE_
SLR4040-500LE_
SLR4040-650LE_
SLR4040-800LE_
SLR4040-101LE_
22
50
65
80
100
0.32
0.32
0.32
0.32
0.32
200
110
100
80
78.0
39.0
31.0
24.0
18.5
61.0
33.5
29.3
20.2
17.0
57.0
30.5
26.8
18.0
15.6
24
24
24
24
24
40
40
40
40
40
70
1. When ordering, please specify packaging code:
SLR4040-101LEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape 500 parts per full reel). Quantities less than
full reel available: in tape (not machine ready) or
with leader and trailer ($25 charge).
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.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked 2000 parts
per full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. DCR is measured on a micro-ohmmeter at points indicated in the
diagram below.
4. DC current that causes an inductance drop of 20% (typ) from its value
without current.
5. Current that causes the specified temperature rise from 25°C ambient.
This information is for reference only and does not represent absolute
maximum ratings.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 1428-1 Revised 06/07/22
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2022
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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