2 / 2 page
© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
Document 322-2
Document 322-2
Revised 12/01/08
SMT Power Inductors – MSS1278
Typical L vs Current
Typical L vs Frequency
1
10
100
1000
10000
0.01
0.1
10
1
Frequency (MHz)
4.7 µH
100 µH
10 µH
1000 µH
1
10
100
1000
10000
0.1
1
100
10
Current (A)
1000 µH
100 µH
10 µH
4.7 µH
0.217
5,5
Recommended
Land Pattern
0.157
4,0
0.197
5,0
0.334
8,5
0.138
3,5
0.197
5,0
0.317
8,05
0.484
12,3
max
0.484
12,3
max
max
0.025
0,635
123
X
Parts manufactured prior
to Sept. 2007 were marked
with only the dash number.
Internal code
Dash number
-40
-20
0
20
40
60
80
100
140
120
Ambient temperature (°C)
120
110
100
90
80
70
60
50
40
30
20
10
0
Isat
Irms
Typical Current Derating
Dimensions are in
inches
mm
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
