ISC-1812
Vishay Dale
Surface Mount, Molded, Shielded Inductors
STANDARD ELECTRICAL SPECIFICATIONS
IND.
(µH) TOL.
0.10 ± 20 %
0.12 ± 20 %
0.15 ± 20 %
0.18 ± 20 %
0.22 ± 20 %
0.27 ± 20 %
0.33 ± 20 %
0.39 ± 20 %
0.47 ± 20 %
0.56 ± 20 %
0.68 ± 20 %
0.82 ± 20 %
1.0 ± 10 %
1.2 ± 10 %
1.5 ± 10 %
1.8 ± 10 %
2.2 ± 10 %
2.7 ± 10 %
3.3 ± 10 %
3.9 ± 10 %
4.7 ± 10 %
5.6 ± 10 %
6.8 ± 10 %
8.2 ± 10 %
10.0 ± 10 %
12.0 ± 10 %
15.0 ± 10 %
18.0 ± 10 %
22.0 ± 10 %
27.0 ± 10 %
33.0 ± 10 %
39.0 ± 10 %
47.0 ± 10 %
56.0 ± 10 %
68.0 ± 10 %
82.0 ± 10 %
100.0 ± 10 %
120.0 ± 10 %
150.0 ± 10 %
180.0 ± 10 %
220.0 ± 10 %
270.0 ± 10 %
330.0 ± 10 %
390.0 ± 10 %
470.0 ± 10 %
560.0 ± 10 %
680.0 ± 10 %
820.0 ± 10 %
1000.0 ± 10 %
Q
MIN.
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
40
40
40
40
40
40
40
40
40
40
TEST
FREQ.
L&Q
(MHz)
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
SELF-
RATED*
RESONANT DCR
DC
FREQ. MIN. MAX. CURRENT
(MHz) (Ohms) (mA)
460
0.23
552
400
0.26
519
390
0.29
491
350
0.32
468
310
0.36
441
280
0.40
418
240
0.45
394
215
0.60
342
205
0.75
306
195
0.80
296
165
0.95
271
155
1.20
242
140
0.35
447
120
0.38
429
100
0.40
418
90.0
0.43
403
80.0
0.46
390
67.0
0.49
378
61.0
0.55
357
56.0
0.59
344
50.0
0.62
336
40.0
0.69
333
32.0
0.75
306
30.0
0.82
292
25.0
0.90
279
22.0
1.0
265
18.0
1.10
252
15.0
1.24
238
14.0
1.36
227
13.0
1.56
212
12.0
1.72
202
11.0
1.89
192
9.0
2.10
183
8.0
2.34
173
7.6
2.60
164
7.2
2.86
156
7.0
3.25
147
6.0
3.64
139
5.0
4.16
130
4.5
5.72
111
4.2
6.30
105
4.0
6.90
101
3.7
7.54
96
3.5
8.20
92
3.3
9.20
87
2.8
10.50
82
2.6
12.0
76
2.2
13.50
72
2.0
16.0
66
*Rated DC Current based on the maximum temperature rise, not to
exceed 40 °C at + 85 °C ambient.
FEATURES
• Molded construction provides superior strength
and moisture resistance
• Tape and reel packaging for automatic handling,
2000/reel, EIA 481
RoHS
COMPLIANT
• Compatible with vapor phase and infrared reflow
soldering
• Shielded construction minimizes coupling to other
components
• 100 % lead (Pb)-free and RoHS compliant
ELECTRICAL SPECIFICATIONS
Inductance Range: 0.10 µH to 1000 µH
Inductance Tolerance: ± 20 % for 0.10 µH to 0.82 µH
± 10 % for 1.0 µH to 1000 µH standard
± 10 %, ± 5 % and ± 3 % available
Temperature Range: - 55 °C to + 125 °C
Coilform Material: Non-Magnetic for 0.10 µH to 0.82 µH
Powdered iron for 1.0 µH to 22 µH. Ferrite for 27 µH to 1000 µH
TEST EQUIPMENT
• H/P 4342A Q-meter with Vishay Dale test fixture or equivalent
• H/P 4191A RF Impedance Analyzer (for SRF measurements)
• Wheatstone bridge
DIMENSIONS in inches [millimeters]
0.126 ± 0.008
[3.20 ± 0.203]
0.177 ± 0.008
[4.50 ± 0.203]
0.006
[0.152]
Ref.
Typ.
0.037 ± 0.008
[0.940 ± 0.203]
0.126 ± 0.008
[3.20 ± 0.203]
0.050 + 0.004
- 0.008
[1.27 + 0.102]
- 0.203]
0.030 ± 0.004
[0.762 ± 0.102]
Typ.
0.124 [3.15]
Ref.
Guidelines for
Parallel Component
Printed Circuit
Mounting Pads on
ISC-1812
Chip Inductors
0.181
[4.6]
0.059
[1.5]
0.118
[3.0]
0.158
[4.0]
0.024*
[0.6]
0.158
[4.0]
0.059
[1.5]
*Recommended minimum spacing between components
Document Number: 34061
Revision: 22-May-07
For technical questions, contact: magnetics@vishay.com
www.vishay.com
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