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Tel: 33 3 82 59 13 33 - Fax: 33 3 82 51 00 49
Specifications may change without notice - Revised
02/04/2003
www.microspire.com
Electrical Data
Part
Number
SESI 18
L
1,2
no load
μH
I
3.6
rated
A
L
2.4
I
5
R
dc Max
at rated I peak max at 25°C
μH
A
m
5K6 1W 6.2 9.8 4.2 13.6 7.5
8K2 1W 8.6 8.3 5.7 11.5 9.0
11K 1W 11.5 7.2 7.7 10 12
15K 1W 14.7 6.35 10.5 8.9 15
18K 1W 18.4 5.7 12.6 7.9 17
22K 1W 22.5
5.1 15.4 7.2 20
22K 2W 22.4
5.6
27K 1W 27.0
4.7
37K 1W 37.0
4.0
49K 1W 49.0
3.5
21.0 7.3 24
18.9
6.5 25
25.9
5.6 29
34.3
4.8 45
SMD Power Inductors - SESI 18 W
Energy storage, smoothing, filtering
Low profile and light
Highly efficient and reliable
Materials meet UL 94-V0 rating
Suited for IR and vapor reflow soldering
Frequency range up to 1 MHz
Operating temperature range: -
40
to +1
00
°C
Weight: 10 grams
Part
Number
SESI 18
L
1,2
no load
μH
I
3.6
rated
A
L
2.4
I
5
R
dc Max
at rated I peak max at 25°C
μH
A
m
56K 1W 56
70K 1W 70 2.9 49
86K 1W 86
M10 1W 103 2.4 70 3.3 75
M12 1W 122 2.2 84 3.1 115
M15 1W 154
1.95 105 2.7 125
M18 1W 177
1.8 126 2.6 175
M22 1W 228
1.6
M33 1W 334
1.34 231 1.9 250
3.3
39
4.6 48
4.1 65
3.7 72
2.6
60
154 2.3 210
Packaging (mm)
Tape and
Reel: 300 pieces per reel of diameter 330 mm
Notes
1.
Tolerance ± 10% for L > 10 μH, ± 20% for L
≤
10μH
2.
Inductance at 0.5V, 100kHz
3.
Irated (permanent DC) without heatsink ;
With heatsink I = Irated x 1.4
4.
Typical inductance value at recommended full load
5.
Ipeak max= maximum peak value of current at
+1
00
°C; L value not guaranteed
6.
40% admissible Iripple over Irated at f=200 kHz
Connections
Ao: 19.4
Bo: 26.4
Ko: 8.4
F: 20.2
P1: 24.0
Po: 4.0
W: 44.0
So: 40.4
F
Bo
Ko
Ao
P1
Po
W
So
Dimensions
(mm)
Typical values
Pad Layout
22.0
±
0.3
26.
5 max
±
0.4
20.0 max
9
max
3.0
3.81
21
28
2 x 0.3
4
1
5
8
To order, please specify: SESI 18 xxx xW
SE18 49K
1 YY/ WW P
1/ f
t
I
I ripple
I rated
I peak