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© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
HIGH TEMPERA
TURE
Document 598-2
Document 598-2
Revised 10/20/08
SMT Power Inductors–MSS1278T Series
0.217
5,5
Recommended
Land Pattern
0.157
4,0
0.197 ±0.008
5,0 ±0,2
0.197 ±0.016
5,0 ±0,4
0.334
8,5
0.138 ±0.016
3,5 ±0,4
0.307 ±0.01
7,80 ±0,25
0.472 ±0.012
12,0 ±0,3
0.472 ±0.012
12,0 ±0,3
Dash number
Internal code
123
X
0.1
1
10
100
1000
10000
0.1
1
100
10
Current (A)
100 µH
10 µH
1 µH
1000 µH
Current Derating
-40 -20
0
20
40
60
80
100
180
160
140
120
Ambient temperature (°C)
120
110
100
90
80
70
60
50
40
30
20
10
0
Isat
Irms
Typical L vs Frequency
Typical L vs Current
0.01
0.1
10
1
Frequency (MHz)
0.1
1
10
100
1000
10000
100 µH
10 µH
1 µH
1000 µH
Dimensions are in
inches
mm