44
SMD Power Inductors -
SESI 18WR
High Reliability Applications
.....High
Grade Technologies............
.....Power
Magnetics.............
.....SMD
Power High Reliability Inductors............
•
•
•
•
•
•
•
•
•
Energy storage, smoothing, filtering
Applied standards :
ECSS-Q-70-02
,
MIL-STD-202
,
DO-160
ESCC
3201/009
versions upon request
Materials meet
UL94-V0
rating
Suited for IR and vapor reflow soldering
Frequency range up to
1
MHz
Operating temperature range :
-
55
°C
to
+
125
°C
Weight :
10
grams
Shielded version upon request
Electrical Data
( 25°C )
ID Code
L
no load
µH
1.2
I
rated
A
3.6
L
at rated I
µH
2.4
I
peak max
A
5
Rdc
at 25°C
mΩ Max
7.5
9.0
12
15
17
20
33
25
29
45
48
65
72
75
115
125
175
210
250
Tol.
SESI 18 6K8 1WR
SESI 18 8K2 1WR
SESI 18 11K 1WR
SESI 18 15K 1WR
SESI 18 18K 1WR
SESI 18 22K 1WR
SESI 18 22K 2WR
SESI 18 27K 1WR
SESI 18 37K 1WR
SESI 18 49K 1WR
SESI 18 56K 1WR
SESI 18 70K 1WR
SESI 18 86K 1WR
SESI 18 M10 1WR
SESI 18 M12 1WR
SESI 18 M15 1WR
SESI 18 M18 1WR
SESI 18 M22 1WR
SESI 18 M33 1WR
6.8
8.2
11
15
18
22
22.2
27
37
49
56
70
86
100
120
150
180
220
330
9.8
8.3
7.2
6.35
5.7
5.1
5.6
4.7
4.0
3.5
3.3
2.9
2.6
2.4
2.2
1.95
1.8
1.6
1.34
4.2
5.7
7.7
10.5
12.6
15.4
15.4
18.9
25.9
34.3
39
49
60
70
84
105
126
154
231
13.6
11.5
10
8.9
7.9
7.2
7.3
6.5
5.6
4.8
4.6
4.1
3.7
3.3
3.1
2.7
2.6
2.3
1.9
20
1. Inductance at
0.25
V
,
100
kHz
2. I rated (permanent DC) without heatsink ;
with heatsink
I
=
I
rated
x
1.4
3. Typical inductance value at recommended full load
4.
I
peak max
=
maximum peak value of current at
+
125
°C
;
L
value not guaranted
5.
40
%
admissible
I
ripple over
I
rated at
f
=
200
kHz
6. Isolation voltage
500
Vdc
-
1
min - Ri >
1
GΩ
between winding and magnetic core
I
I ripple
Notes
10
I rated
1/f
I peak
t
SESI
SMD Energy
Storage Inductor
To Order
SESI 18
### #
WR
###
Value code
4K9 = 4,9 µH
M10 = 100 µH
1M0 = 1000 µH
#
Version
W
GW
Terminals
R
High
reliability
18
Size
Connections
1
8
4
5
Marking
SE 18 xxx
xR yywwP
yyww :
Date code
Packaging
F
Tape and Reel:
300
pieces per reel of diameter
330
mm
Dimensions
(mm, top view)
5
4
PCB Layout
(suggested)
2.1
x
0.4
MAX
19.8
MAX
So
W
Unreeling
P
1
Po
F: 20.2
P1: 24.0
Po: 4.0
W: 44.0
So: 40.4
21
8
28
22.0
± 0.3
1
MAX
8.9
1.3
to
1.6
26
MAX
3.0
3.81
Tel : + 33 (0) 3 82 59 13 33
www.microspire.com
Specifications may change without prior notice - Revised 06/09
45
SMD Power Inductors
SESI 18WR
QPL Components
SESI 18WR
series are usually installed on Military applications and breadboards for Space applications.
Since January 2003, Microspire has been manufacturing Radio Frequency Fixed Coils,
SESI 18WR
series fulfilling
ESA ESCC
Generic specification
N°
3201
and detail specification
N°
3201/009.
This qualification approval includes final production tests Chart II, burn-in and electrical measurements to testing
level B Chart III and qualification testing Chart IV.
For procurement, different quality levels are offered :
• Final production tests Chart II
• Burn-in and electrical measurements Chart III with level B or C (as required)
• Lot acceptance testing Chart V if required
Components delivered through this specification need to be processed and inspected in accordance with the
Microspire Process Identification Document (P.I.D.).
Each component delivered is traceable to its production lot.
The terminal material and finish shall be brass, plated with
2
to
4
µm of Nickel, the finish shall be either
Sn60Pb40
or
Sn90Pb10.
.....High
Grade Technologies............
.....Power
Magnetics.............
.....SMD
Power High Reliability Inductors............
Microspire Non-QPL ID Code
SESI 18 6K8 1WR
SESI 18 8K2 1WR
SESI 18 11K 1WR
SESI 18 15K 1WR
SESI 18 18K 1WR
SESI 18 22K 1WR
SESI 18 27K 1WR
SESI 18 37K 1WR
SESI 18 49K 1WR
SESI 18 56K 1WR
SESI 18 70K 1WR
SESI 18 86K 1WR
SESI 18 M10 1WR
SESI 18 M12 1WR
SESI 18 M15 1WR
SESI 18 M18 1WR
SESI 18 M22 1WR
SESI 18 M33 1WR
Cross reference chart
ESA SCC
Component Part Number
3201009 04 x 6L8 M
3201009 04 x 8L2 M
3201009 04 x 110 M
3201009 04 x 150 M
3201009 04 x 180 M
3201009 04 x 220 M
3201009 04 x 270 M
3201009 04 x 370 K
3201009 04 x 490 K
3201009 04 x 560 K
3201009 04 x 700 K
3201009 04 x 860 K
3201009 04 x 101 K
3201009 04 x 121 K
3201009 04 x 151 K
3201009 04 x 181 K
3201009 04 x 221 K
3201009 04 x 331 K
3201009 04 x ### y
x = B for Chart III level B
Tolerance :
x = C for Chart III level C
y =
M
for ±20%
y =
K
for ±10%
Tel : + 33 (0) 3 82 59 13 33
www.microspire.com
Specifications may change without prior notice - Revised 06/08
MicroPython Open Source section
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