Model ISC-1812
Vishay Dale
Inductors
Surface Mount, Molded, Shielded
FEATURES
• Molded construction provides superior strength and moisture resistance.
• Tape and reel packaging for automatic handling, 2000/reel, EIA 481.
• Compatible with vapor phase and infrared reflow soldering.
• Shielded construction minimizes coupling to other components.
ELECTRICAL SPECIFICATIONS
STANDARD ELECTRICAL SPECIFICATIONS
Inductance Range: .10µH to 1000µH.
Inductance Tolerance: ± 20% for .10µH to .82µH.
± 10% for 1.0µH to 1000µH standard.
± 10%, ± 5%, ± 3% and 2% (also 1% on some values)
available.
Temperature Range: - 55°C to + 125°C.
Coilform Material: Non-Magnetic for .10µH to .82µH.
Powdered iron for 1.0µH to 22µH. Ferrite for 27µH to 1000µH.
TEST
SELF-
RATED
DC
DCR
MAX.
(Ohms)
FREQ. RESONANT
Q
MIN.
FREQ. MIN.
(MHz)
CURRENT
(mA)
IND.
(µH)
L & Q
(MHz)
TOL.
.23
.26
.29
.32
.36
.40
.45
.60
.75
.80
.95
1.20
552
519
491
468
441
418
394
342
306
296
271
242
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
460.0
400.0
390.0
350.0
310.0
280.0
240.0
215.0
205.0
195.0
165.0
155.0
.10
.12
.15
.18
.22
.27
.33
.39
.47
.56
.68
.82
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
30
30
30
30
30
30
30
30
30
30
30
30
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.
.35
.38
.40
.43
.46
.49
.55
.59
.62
.69
.75
.82
447
429
418
403
390
378
357
344
336
333
306
292
279
265
252
238
227
212
202
192
183
173
164
156
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
.796
.796
.796
.796
.796
.796
.796
.796
.796
.796
.796
.796
.252
140.0
120.0
100.0
90.0
80.0
67.0
61.0
56.0
50.0
40.0
32.0
30.0
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
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
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
DIMENSIONAL CONFIGURATIONS
[Numbers in brackets indicate millimeters]
.126 ± .008
[3.20 ± .203]
.006
[.152]
Ref.
Typ.
.177 ± .008
[4.50 ± .203]
.037 ± .008
25.0
22.0
18.0
15.0
14.0
13.0
12.0
11.0
9.0
.90
1.0
[.940 ± .203]
1.10
1.24
1.36
1.56
1.72
1.89
2.10
2.34
2.60
2.86
3.25
3.64
4.16
5.72
6.30
6.90
7.54
8.20
9.20
10.50
12.0
13.50
16.0
.050 + .004
- .008
[1.27 + .102]
.030 ± .004
.126 ± .008
- .203]
[.762 ± .102]
[3.20 ± .203]
Typ.
.124 [3.15]
Ref.
8.0
7.6
.158
[4.0]
7.2
147
139
130
111
105
101
96
7.0
6.0
5.0
4.5
4.2
4.0
3.7
3.5
3.3
2.8
2.6
2.2
2.0
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%
.181 [4.6]
Guidelines for
Parallel Component
.158
[4.0]
.024*
[0.6]
Printed Circuit
Mounting Pads on
ISC-1812
.059
[1.5]
92
.059
[1.5]
87
Chip Inductors
82
76
.118 [3.0]
72
66
*Recommended minimum spacing between components.
COUPLING SPECIFICATIONS (MAXIMUM)
PART MARKING
— Vishay Dale
— Inductance value
— Date code
10
5
HOW TO ORDER
1
ISC-1812
10µH
± 10%
.5
1
5
10
50 100
500 1000
MODEL
INDUCTANCE
VALUE
INDUCTANCE
TOLERANCE
INDUCTANCE (µH)
www.vishay.com
46
Document Number 34061
Revision 03-May-99