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
Inductance
2
±20% (µH)
0.070
0.13
0.20
0.33
0.47
0.56
0.80
1.1
1.2
DCR (mOhms)
3
typ
max
2.45
2.85
3.50
4.05
4.90
5.65
8.00
9.20
9.44
10.85
14.50
16.70
20.50
23.55
31.50
36.25
35.00
40.25
SRF typ
4
(MHz)
471
294
227
158
135
129
94
80
70
Isat
(A)
5
20% drop
13.0
9.8
8.6
6.2
5.7
5.4
4.0
3.5
3.2
Irms
(A)
6
20°C rise 40°C rise
5.3
7.5
4.5
6.4
4.0
5.6
3.2
5.0
2.9
4.6
2.4
3.8
2.0
3.1
1.7
2.7
1.5
2.5
Part number
XEL3520-700ME_
XEL3520-131ME_
XEL3520-201ME_
XEL3520-331ME_
XEL3520-471ME_
XEL3520-561ME_
XEL3520-801ME_
XEL3520-112ME_
XEL3520-122ME_
1
10% drop
9.7
7.2
5.7
3.9
3.7
3.3
2.5
2.2
2.0
30% drop
18.5
13.8
11.8
8.7
8.0
7.3
5.6
5.0
4.8
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).
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
(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.
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 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
Document 1340-1
Revised 08/18/16
© 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.
Document 1340-2
Shielded Power Inductors – XEL3520
L vs Current
Inductance (µH)
0.8
0.6
0.4
0.2
0
0
2
4
6
8
10
12
14
16
18
20
22
Inductance (µH)
1.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1
2
3
4
5
6
7
8
9
10
0.070 µH
0.56 µH
Current (A)
Current (A)
Inductance (µH)
0.16
0.12
0.08
0.04
0
0
2
4
6
8
10
12
14
16
18
20
Inductance (µH)
0.20
1.0
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
6
7
8
0.13 µH
0.80 µH
Current (A)
Current (A)
Inductance (µH)
Inductance (µH)
0.30
0.25
0.20
0.15
0.10
0.05
0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.5 6.0
0.20 µH
1.1 µH
0
1
2
3
4
5
6
Current (A)
7
8
9
10 11 12 13 14 15 16
Current (A)
5.0
Inductance (µH)
0.3
0.2
0.1
0
0
1
2
3
4
Inductance (µH)
0.4
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.5 6.0
0.33 µH
1.2 µH
Current (A)
5
6
7
8
9
10
11
Current (A)
5.0
Inductance (µH)
0.6
0.4
0.2
0
0.47 µH
0
1
2
3
4
Current (A)
5
6
7
8
9
10
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
Document 1340-2
Revised 08/18/16
© 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.
Document 1340-3
Shielded Power Inductors – XEL3520
L vs Frequency
1000
1.2 µH
1.1 µH
0.80 µH
0.56 µH
0.47 µH
0.33 µH
0.20 µH
10
0.13 µH
0.07 µH
0.079
max
2,0
0.126 ±0.006
3,20 ±0,15
XXX
0.138 ±0.006
3,50 ±0,15
Inductance (µH)
100
Dash
number
Indicates orientation
of terminations
Recommended
Land Pattern
0.024 ±0.0024
0,60 ±0,06
0.071
1,80
1.0
0.1
1
10
100
1000
0.113 ±0.008
2,88 ±0,20
0.126
3,2
Frequency (GHz)
0.045 ±0.010
1,14 ±0,25
0.032
0,81
Dimensions are in
inches
mm
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
Document 1340-3
Revised 08/18/16
© 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.
Embedded System
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