SLR1050A Datasheet, PDF (1/3 Pages) Coilcraft lnc. – Shielded Power Inductors

Document 1255-1
Shielded Power Inductors – SLR1050
• Tight DCR tolerance for inductor-DCR-based current sensing
circuits
• Three versions for optimal efficiency and accuracy
• Excellent current handling
• 10.2 × 7.0 × 4.95 mm surface mount package
• Designed for use in multi-phase VRM/VRD/EVRD regulators
Core material Ferrite
Weight  1.2 – 1.4 g
Environmental  RoHS compliant, halogen free
Terminations  RoHS compliant matte tin over nickel over copper.
Ambient temperature  –40°C to +85°C with 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  250/7″ reel; 1000/13″ reel;  Plastic tape:  24 mm wide,
0.4 mm thick, 12 mm pocket spacing, 5.03 mm pocket depth
PCB washing  Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.

  _{Part number}1
  _Inductance2
±10% (nH)
  Lowest DCR
SLR1050A-850KE_
85
SLR1050A-101KE_
100
SLR1050A-121KE_
120
SLR1050A-151KE_
150
SLR1050A-221KE_
220
 Balanced DCR/tolerance
SLR1050B-850KE_
85
SLR1050B-101KE_
100
SLR1050B-121KE_
120
SLR1050B-151KE_
150
SLR1050B-221KE_
220
 Tightest DCR tolerance
SLR1050C-850KE_
85
SLR1050C-101KE_
100
SLR1050C-121KE_
120
SLR1050C-151KE_
150
SLR1050C-221KE_
220
DCR
(mOhms)
0.39 ±7.7%
0.39 ±7.7%
0.39 ±7.7%
0.39 ±7.7%
0.39 ±7.7%
0.47 ±6.7%
0.47 ±6.7%
0.47 ±6.7%
0.47 ±6.7%
0.47 ±6.7%
0.55 ±5.4%
0.55 ±5.4%
0.55 ±5.4%
0.55 ±5.4%
0.55 ±5.4%
SRF typ
(MHz)
210
200
180
90
65
210
200
180
90
65
210
200
180
90
65
  Isat (A)³
at 25°C  at 100°C  at 125°C
86
68.0
60.5
78
61.5
55.0
65
51.0
48.0
51
38.0
36.0
35
25.5
23.5
86
68.0
60.5
78
61.5
55.0
65
51.0
48.0
51
38.0
36.0
35
25.5
23.5
86
68.0
60.5
78
61.5
55.0
65
51.0
48.0
51
38.0
36.0
35
25.5
23.5
  _{Irms (A)}4
20°C rise  40°C rise
56.7
77.1
56.7
77.1
56.7
77.1
56.7
77.1
56.7
77.1
48.8
67.2
48.8
67.2
48.8
67.2
48.8
67.2
48.8
67.2
46.7
65.0
46.7
65.0
46.7
65.0
46.7
65.0
46.7
65.0
1. When ordering, please specify version and packaging codes:
SLR1050C -221KEC
Version
A = Lowest DCR; B = Balanced DCR / DCR tol;
C = Tightest DCR tolerance
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (250 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 (1000 parts
per full reel).
2. Inductance at 100 kHz, 0.1 Vrms, 0 Adc.
3. DC current at 25°C that causes an inductance drop of 20% (typ) 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.
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UK [phone] [e-mail]
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China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 1255-1  Revised 02/09/16
© Coilcraft Inc. 2016
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.