Document 1340-1
Shielded Power Inductors XEL3520
• Extremely low DCR and ultra low AC losses for high switching
frequencies (2 to 5 MHz)
• Superior current handling with soft saturation characteristics
• Can withstand high current spike
Core material Composite
Environment RoHS compliant, halogen free
Terminations RoHS compliant, tin-silver over copper.
Weight 105 – 111 mg
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 1000/7″ reel; 3000/13″ reel Plastic tape: 12 mm wide,
0.21 mm thick, 8 mm pocket spacing, 2.2 mm pocket depth
DCR (mOhms)3
Isat (A) 5
10ꢀ drop 20ꢀ drop 30ꢀ drop
Irms (A)6
20°C rise 40°C rise
Inductance2
20ꢀ (ꢁµ)
SRF typ4
(Mµz)
Part number1
typ
max
XEL3520-700ME_
XEL3520-131ME_
XEL3520-201ME_
XEL3520-331ME_
XEL3520-471ME_
0.070
0.13
0.20
0.33
0.47
2.45
3.50
4.90
8.00
9.44
2.85
4.05
5.65
9.20
10.85
471
294
227
158
135
9.7
7.2
5.7
3.9
3.7
13.0
9.8
8.6
6.2
5.7
18.5
13.8
11.8
8.7
5.3
4.5
4.0
3.2
2.9
7.5
6.4
5.6
5.0
4.6
8.0
XEL3520-561ME_
XEL3520-801ME_
XEL3520-112ME_
XEL3520-122ME_
0.56
0.80
1.1
14.50
20.50
31.50
35.00
16.70
23.55
36.25
40.25
129
94
80
3.3
2.5
2.2
2.0
5.4
4.0
3.5
3.2
7.3
5.6
5.0
4.8
2.4
2.0
1.7
1.5
3.8
3.1
2.7
2.5
1.2
70
1. When ordering, please specify packaging code:
XEL3520-112MEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel).
Irms Testing
Irms testing was performed on
0.75 inch wide × 0.25 inch thick
copper traces in still air.
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
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.
(3000 parts per full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using Agilent/HP 4395A or equivalent.
5. DC current at 25°C that causes the specified inductance drop from its value without current.
6. Current that causes the specified temperature rise from 25°C ambient.This information is for reference only
and does not represent absolute maximum ratings.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 1340-1 Revised 08/18/16
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
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China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© 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.