www.vishay.com
60
ISC-1812
Vishay Dale
Document Number 34061
Revision 28-Aug-02
For technical questions, contact Magnetics@vishay.com
Surface Mount, Molded, Shielded Inductors
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.
STANDARD ELECTRICAL SPECIFICATIONS
IND.
(µH) TOL. Q
MIN.
TEST
FREQ.
L & Q
(MHz)
SELF-
RESONANT
FREQ. MIN.
(MHz)
DCR
MAX.
(Ohms)
RATED
DC
CURRENT
(mA)
ELECTRICAL SPECIFICATIONS
Inductance Range: 0.10µH to 1000µH.
Inductance Tolerance: ± 20% for 0.10µH to 0.82µH.
± 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 0.10µH to 0.82µH.
Powdered iron for 1.0µH to 22µH. Ferrite for 27µH to 1000µH.
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.
*Recommended minimum spacing between components.
DESCRIPTION
— Vishay Dale
— Inductance value
— Date code
ISC-1812
MODEL
10µH
INDUCTANCE
VALUE
± 10%
INDUCTANCE
TOLERANCE
PART MARKING
COUPLING SPECIFICATIONS [maximum]
DIMENSIONS in inches [millimeters]
INDUCTANCE (µH)
10
5
1
COUPLING (%)
0.5 1 5 10 50 100 5001000
0.037 ± 0.008
[0.940 ± 0.203]
0.126 ± 0.008
[3.20 ± 0.203]
0.059
[1.5]
0.059
[1.5]
0.158
[4.0]
0.158
[4.0]
0.024*
[0.6]
0.181
[4.6]
0.006
[0.152]
Ref.
Typ.
0.030 ±
0.004
[0.762 ±
0.102]
Typ.
0.124 [3.15]
Ref.
0.050 + 0.004
- 0.008
[1.27 + 0.102]
- 0.203]
0.177 ± 0.008
[4.50 ± 0.203]
Guidelines for
Parallel Component
Printed Circuit
Mounting Pads on
ISC-1812
Chip Inductors
0.126 ± 0.008
[3.20 ± 0.203]
0.118
[3.0]
552
519
491
468
441
418
394
342
306
296
271
242
447
429
418
403
390
378
357
344
336
333
306
292
279
265
252
238
227
212
202
192
183
173
164
156
147
139
130
111
105
101
96
92
87
82
76
72
66
0.23
0.26
0.29
0.32
0.36
0.40
0.45
0.60
0.75
0.80
0.95
1.20
0.35
0.38
0.40
0.43
0.46
0.49
0.55
0.59
0.62
0.69
0.75
0.82
0.90
1.0
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
460.0
400.0
390.0
350.0
310.0
280.0
240.0
215.0
205.0
195.0
165.0
155.0
140.0
120.0
100.0
90.0
80.0
67.0
61.0
56.0
50.0
40.0
32.0
30.0
25.0
22.0
18.0
15.0
14.0
13.0
12.0
11.0
9.0
8.0
7.6
7.2
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
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
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
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
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
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
1000.0
SAP PART NUMBERING GUIDELINES (INTERNAL)
PRODUCT FAMILY SIZE
See the end of this data book for conversion tables
INDUCTANCE
VALUE
PACKAGE
CODE TOL.
ISC 1812 RV 100 K
