Document 106-1
ChipInductors
–
1812LSSeries(4532)
With inductance values up to 1000 µH, these are
our highest rated chip inductors. Their ferrite core
allows higher current ratings and lower DC
resistance.
Part
Number
1
1812LS-123X_B _
1812LS-153X_B _
1812LS-183X_B _
1812LS-223X_B _
1812LS-273X_B _
1812LS-333X_B _
1812LS-393X_B _
1812LS-473X_B _
1812LS-563X_B _
1812LS-683X_B _
1812LS-823X_B _
1812LS-104X_B _
1812LS-124X_B _
1812LS-154X_B _
1812LS-184X_B _
1812LS-224X_B _
1812LS-274X_B _
1812LS-334X_B _
1812LS-394X_B _
1812LS-474X_B _
1812LS-564X_B _
1812LS-684X_B _
1812LS-824X_B _
1812LS-105X_B _
Inductance
(µH)
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
2
Coilcraft
Designer’s Kit C114
contains samples of
all 5% tolerance parts. To order, contact Coilcraft or
puchase on-line at
http://order.coilcraft.com.
Test
Freq
(MHz)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
SRF
Min
5
(MHz)
55
45
37
32
27
23
19
16
13
10
9
8.5
8.5
8.5
8.0
6.0
5.0
4.5
3.5
3.0
2.0
1.9
1.6
1.5
DCR
Max
6
(Ohms)
2.0
2.5
2.8
3.2
3.6
4.0
4.5
5.0
5.5
6.0
7.0
8.0
11.5
13.0
14.2
16.2
20.5
22.5
24.5
26.5
28.5
38.0
41.0
44.0
I
DC
Max
7
(mA)
310
290
270
260
240
230
210
200
190
180
170
150
135
125
120
115
105
100
90
85
75
60
55
50
Percent
Tolerance
3
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,5
10,
5
10,
5
Q
Min
4
42
42
45
45
45
45
45
42
42
40
40
40
33
36
36
38
38
38
38
38
33
33
30
30
1. When ordering, please specify tolerance and packaging codes:
Inductance tolerance code:
Table above shows stock tolerances in bold.
J=
±5%,
K=
±10%
1812LS-105X _B_
Packaging code:
C
=
7″ machine-ready reel
EIA RS-481 clear plastic
tape. 600 per reel.
B
=
Less than full reel
Not machine-ready. The car-
rier tape may not be a single continuous length. To
have a leader and trailer added ($25 charge), use
code letter C instead.
D
=
13″ machine-ready reel
EIA RS-481 clear plastic
tape. Factory order only, not stocked. 2200 per reel.
2. Inductance at 2.5 MHz measured using Agilent/HP4286A and Coilcraft
SMD-A fixture with Coilcraft-provided correlation pieces. Inductance at
0.79 MHz measured using Agilent/HP4192A and Coilcraft SMD-B test
fixture with Coilcraft-provided correlation pieces.
3. Tolerances in bold are stocked for immediate shipment.
4. Q read directly on Agilent/HP4192A LF impedance analyzer and Coilcraft
SMD-B test fixture using Coilcraft supplied correlation pieces.
5. SRF measured using Agilent/HP8753D network analyzer and Coilcraft
SMD-D test fixture.
6. DCR measured on Cambridge Technology micro-ohmmeter.
7. For 15° C rise.
8. Operating temperature range
−40°
C to +85° C.
9. Electrical specifications at 25° C.
10. For environmental data, see “Product Specifications” page (Doc. 121).
Specifications subject to change without notice.
Document 106-1 Revised 4/19/01
Document 106-2
1812LS (4532) Chip Inductors
TYPICAL Q vs FREQUENCY
SATURATING CURRENT
10000
A
Max
.195
4,95
B
Max
.150
3,81
C
Max
.135
3,43
D
Ref
.070
1,78
E
.100
2,54
F
.025
0,64
G
.128
3,25
H
.120
3,05
I
.045
1,14
J
.118
3,00
Parts/reel: 7″ 600; 13″ 2200 Tape width: 12 mm
For packaging data, see “Tape and Reel Specifications” (Document 173).
Inductance (uH)
1000 µH
1000
330 µH
100 µH
100
33 µH
12 µH
10
1
10
100
DC Current (mA)
1000
Specifications subject to change without notice.
Document 106-2 Revised 4/9/01
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