Document 380-1
SMT Power Inductor – ME3220 Series
The ME3220 power inductor is a low profile, small footprint
part designed for use in notebook computers and hand-
held products.
With a base dimension of only 2,5 × 3,2 mm, these
inductors require very little pc board space. While only
2,5 mm high they can handle up to 2.7 A saturating current.
The square, flat top provides an excellent surface for pick
and place handling.
They are available in 21 inductance values from 1.0 to
100 µH with all above 8.2 µH at 10% tolerance.
Coilcraft
Designer’s Kit C186
contains samples of all
values shown. To order, contact Coilcraft or purchase on-
line at
http://order.coilcraft.com.
Part
number
1
Inductance
2
(µH)
DCR
max
3
(Ohms)
0.058
0.068
0.104
0.138
0.190
0.200
0.270
0.290
0.434
0.470
0.520
0.696
0.787
1.19
1.27
1.38
1.80
2.10
2.30
3.00
3.50
SRF
typ
4
(MHz)
550.0
525.0
500.0
480.0
455.0
420.0
389.0
365.0
335.0
300.0
286.0
250.0
220.0
180.0
150.0
135.0
120.0
110.0
100.0
95.0
85.0
1. When ordering, please specify
packaging
code:
Isat
5
(A)
2.7
2.2
1.8
1.3
1.2
1.1
1.0
0.90
0.80
0.75
0.70
0.64
0.58
0.52
0.47
0.43
0.39
0.36
0.33
0.30
0.27
ME3220-104KXC
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (2000 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 (7000 parts per full reel).
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft
SMD-A fixture in Agilent/HP 4284A impedance analyzer.
DCR measured on a micro-ohmmeter and Coilcraft CCF858 test fixture.
SRF measured using Agilent/HP 8753D network analyzer and Coilcraft
SMD-D test fixture.
DC current at which the inductance drops 15% (typ) from its value
without current.
Operating temperate range –40°C to +85°C.
Electrical specifications at 25°C.
ME3220-102MX_
1.0 ±20%
ME3220-152MX_
1.5 ±20%
ME3220-222MX_
2.2 ±20%
ME3220-332MX_
3.3 ±20%
ME3220-472MX_
4.7 ±20%
ME3220-562MX_
5.6 ±20%
ME3220-682MX_
6.8 ±20%
ME3220-822MX_
8.2 ±20%
ME3220-103KX_ 10 ±10%
ME3220-123KX_ 12 ±10%
ME3220-153KX_ 15 ±10%
ME3220-183KX_ 18 ±10%
ME3220-223KX_ 22 ±10%
ME3220-273KX_ 27 ±10%
ME3220-333KX_ 33 ±10%
ME3220-393KX_ 39 ±10%
ME3220-473KX_ 47 ±10%
ME3220-563KX_ 56 ±10%
ME3220-683KX_ 68 ±10%
ME3220-823KX_ 82 ±10%
ME3220-104KX_ 100 ±10%
2.
3.
4.
5.
6.
7.
Specifications subject to change without notice.
Please check our website for latest information.
Document 380-1
Revised 01/27/05
Document 380-2
SMT Power Inductor – ME3220 Series
Typical L vs Frequency
1000
Typical L vs Current
1000
100
100 µH
100
33 µH
10 µH
3.3 µH
1 µH
100 µH
33 µH
10 µH
Inductance (µH)
10
Inductance (µH)
10
3.3 µH
1 µH
1
1
0.1
0.01
0.1
1
10
0.1
0.01
0.1
1
10
Frequency (MHz)
Current (A)
0.126 ±0.012
3,2 ±0,3
Typical Temperature Rise vs Current
50
Temperature rise (from 25°C)
100 µH
40
33 µH
10 µH
3.3
µH
0.110
max
2,8
30
0.098 ±0.008
2,5 ±0.2
20
0.079 ±0.016
2,0 ±0,4
0.150
3,81
10
0
0
0.5
1.0
1.5
2.0
2.5
3.0
1.
0
µH
Current (A rms)
0.043
1,10
0.060
1,52
Current Derating
+20
0.098
2,5
0.120
3,05
Change in rated current (%)
+10
0
-10
-20
-30
-40
-40
Recommended
Land Pattern
Terminations:
Nickel/tin over silver
Tape and reel:
2000/7″ reel; 7000/13″ reel 8 mm tape width
For packaging data see Tape and Reel Specifications section.
-20
0
20
25°C
40
60
80
100
120 140
Ambient temperature (°C)
Specifications subject to change without notice.
Please check our website for latest information.
Document 380-2
Revised 02/07/05
嵌入式系统
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