ISC-1812
www.vishay.com
Vishay Dale
Wirewound, 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
STANDARD ELECTRICAL SPECIFICATIONS
IND.
(μH)
0.10
0.12
0.15
0.18
0.22
0.33
0.39
0.47
0.56
0.68
0.82
0.8
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
TEST
FREQ.
(MHz)
TOL.
± 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 %
L&Q
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
SRF
MIN.
Q MIN. (MHz)
30
460
30
400
30
390
30
350
30
310
30
280
30
240
30
215
30
205
30
195
30
165
30
155
30
140
30
120
30
100
30
90.0
30
80.0
30
67.0
30
61.0
30
56.0
30
50.0
30
40.0
30
32.0
30
30.0
50
25.0
50
22.0
50
18.0
50
15.0
50
14.0
50
13.0
50
12.0
50
11.0
50
9.0
50
8.0
50
7.6
50
7.2
40
7.0
40
6.0
40
5.0
40
4.5
40
4.2
40
4.0
40
3.7
40
3.5
40
3.3
30
2.8
40
2.6
30
2.2
30
2.0
DCR
MAX.
()
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
1.00
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
12.00
13.50
16.00
RATED DC
CURRENT
(mA) (1)
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
Note
(1) Rated DC current based on the maximum temperature rise, not
to exceed 40 °C at + 85 °C ambient
Revision: 11-Dec-12
• Compatible with vapor phase and infrared reflow
soldering
• Shielded construction minimizes coupling to other
components
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
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 %, ± 3 % available
Operating Temperature: - 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]
0.037 ± 0.008
[0.940 ± 0.203]
0.126 ± 0.008
[3.200 ± 0.203]
0.006 [0.152]
Ref. Typ.
0.177 ± 0.008
[4.500 ± 0.203]
+ 0.004
- 0.008
+ 0.102
[1.270 - 0.203 ]
0.050
0.126 ± 0.008
[3.200 ± 0.203]
Typ.
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
0.158
[4.0]
0.181
[4.6]
0.024 (1)
[0.6]
0.059
[1.5]
0.158
[4.0]
0.059
[1.5]
0.118 [3.0]
Note
(1) Recommended minimum spacing between components
PART MARKING
- Vishay Dale
- Inductance value
- Date code
Document Number: 34061
1
For technical questions, contact: magnetics@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
