Document 106-1
Chip Inductors
–
1812LS Series (4532)
• Highest inductance values of all our chip inductors
• Ferrite construction for high current handling
• Inductance values: 12 – 1000 µH
RequestfreeevaluationsamplesbycontactingCoilcraftor
visiting www.coilcraft.com.
Inductance2
(µH)
Percent
tolerance
Q
Test freq
(MHz)
SRF typ4
(MHz)
DCR max5
(Ohms)
Irms6
(mA)
Part number1
min3
1812LS-123XJL_
1812LS-153XJL_
1812LS-183XJL_
1812LS-223XJL_
1812LS-273XJL_
12
15
18
22
27
5
5
5
5
5
42
42
45
45
45
2.5
2.5
2.5
2.5
2.5
85
70
52
58
46
2.0
2.5
2.8
3.2
3.6
310
290
270
260
240
1812LS-333XJL_
1812LS-393XJL_
1812LS-473XJL_
1812LS-563XJL_
1812LS-683XJL_
33
39
47
56
68
5
5
5
5
5
45
45
42
42
40
2.5
2.5
2.5
2.5
2.5
40
30
24
20
16
4.0
4.5
5.0
5.5
6.0
230
210
200
190
180
1812LS-823XJL_
1812LS-104XJL_
1812LS-124XJL_
1812LS-154XJL_
1812LS-184XJL_
82
100
120
150
180
5
5
5
5
5
40
40
33
36
36
2.5
2.5
0.79
0.79
0.79
13.5
12.0
14.5
11.5
9.3
7.0
8.0
11.5
13.0
14.2
170
150
135
125
120
1812LS-224XJL_
1812LS-274XJL_
1812LS-334XJL_
1812LS-394XJL_
1812LS-474XJL_
220
270
330
390
470
5
5
5
5
5
38
38
38
38
38
0.79
0.79
0.79
0.79
0.79
7.6
8.3
7.0
5.2
4.4
16.2
20.5
22.5
24.5
26.5
115
105
100
90
85
1812LS-564XJL_
1812LS-684XJL_
1812LS-824XJL_
1812LS-105XJL_
560
680
820
5
5
5
5
33
33
30
30
0.79
0.79
0.79
0.79
2.8
2.3
2.1
1.9
28.5
38.0
41.0
44.0
75
60
55
50
1000
1. When ordering, please specify termination and packaging codes:
1812LS-105XJLC
Termination: L = RoHS compliant silver-palladium-platinum-glass frit.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
2. Inductance at 2.5 MHz measured using an Agilent/HP 4286A and a
Coilcraft SMD-A fixture with Coilcraft-provided correlation pieces.
Inductance at 0.79 MHz measured using an Agilent/HP 4192A and
Coilcraft SMD-B test fixture.
3. Q read at test frequency directly on an Agilent/HP 4192A LF impedance
analyzer and a Coilcraft SMD-B test fixture.
4. SRF measured using an Agilent/HP 8753D network analyzer and a
Coilcraft SMD-D test fixture.
5. DCR measured on a Cambridge Technology micro-ohmmeter.
6. Current that causes a 15°C temperature rise from 25°C ambient.
Because of their open construction, these parts will not saturate.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
See Color Coding section for part marking data.
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (600 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. Factory order only, not stocked (2200 per full
reel).
Specifications subject to change without notice.
Please check our website for latest information.
Document106-1 Revised10/06/08
© Coilcraft, Inc. 2009
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