IMC-1812
Vishay Dale
Wirewound, Surface Mount, Molded Inductors
FEATURES
STANDARD ELECTRICAL SPECIFICATIONS
TEST FREQ.
SRF DCR RATED DC
(MHz)
MIN. MAX. CURRENT
Q
IND.
(mA) (1)
MIN. (MHz) ()
(μH)
TOL.
L&Q
0.010 ± 20 %
50.0
50 1000 0.20
450
0.012 ± 20 %
50.0
50 1000 0.20
450
0.018 ± 20 %
50.0
50 1000 0.20
450
0.022 ± 20 %
50.0
50 1000 0.20
450
0.027 ± 20 %
50.0
50 1000 0.20
450
0.033 ± 20 %
50.0
50 1000 0.30
450
0.039 ± 20 %
50.0
50 1000 0.30
450
0.047 ± 20 %
50.0
50 1000 0.30
450
0.056 ± 20 %
50.0
40
900
0.35
450
0.068 ± 20 %
50.0
40
800
0.35
450
0.082 ± 20 %
50.0
40
700
0.40
450
0.10 ± 20 %
25.2
30
650
0.32
450
0.12 ± 20 %
25.2
30
600
0.30
450
0.15 ± 20 %
25.2
30
500
0.30
450
0.18 ± 20 %
25.2
30
400
0.35
450
0.22 ± 20 %
25.2
30
350
0.40
450
0.27 ± 20 %
25.2
30
300
0.45
450
0.33 ± 20 %
25.2
30
250
0.55
430
0.39 ± 20 %
25.2
30
220
0.70
380
0.47 ± 10 %
25.2
30
190
0.80
355
0.56 ± 10 %
25.2
30
170
1.20
285
0.68 ± 10 %
25.2
30
150
1.40
270
0.82 ± 10 %
25.2
30
140
1.60
250
1.0
± 10 %
7.96
50
100
0.50
450
1.2
± 10 %
7.96
50
80.0 0.55
430
1.5
± 10 %
7.96
50
70.0 0.60
410
1.8
± 10 %
7.96
50
60.0 0.65
390
2.2
± 10 %
7.96
50
55.0 0.70
380
2.7
± 10 %
7.96
50
50.0 0.75
370
3.3
± 10 %
7.96
50
45.0 0.80
355
3.9
± 10 %
7.96
50
40.0 0.90
330
4.7
± 10 %
7.96
50
35.0 1.00
315
5.6
± 10 %
7.96
50
33.0 1.10
300
6.8
± 10 %
7.96
50
27.0 1.20
285
8.2
± 10 %
7.96
50
25.0 1.40
270
10.0 ± 10 %
2.52
50
20.0 1.60
250
12.0 ± 10 %
2.52
50
18.0 2.00
225
15.0 ± 10 %
2.52
50
17.0 2.50
200
18.0 ± 10 %
2.52
50
15.0 2.80
190
22.0 ± 10 %
2.52
50
13.0 3.20
180
27.0 ± 10 %
2.52
50
12.0 3.60
170
33.0 ± 10 %
2.52
50
11.0 4.00
160
39.0 ± 10 %
2.52
50
11.0 4.50
150
47.0 ± 10 %
2.52
50
10.0 5.00
140
56.0 ± 10 %
2.52
50
9.0
5.50
135
68.0 ± 10 %
2.52
50
9.0
6.00
130
82.0 ± 10 %
2.52
50
8.0
7.00
120
100.0 ± 10 %
0.79
40
8.0
8.00
110
120.0 ± 10 %
0.79
40
6.0
8.00
110
150.0 ± 10 %
0.79
40
5.0
9.00
105
180.0 ± 10 %
0.79
40
5.0
9.50
102
220.0 ± 10 %
0.79
40
4.0
10.0
100
270.0 ± 10 %
0.79
40
4.0
12.0
92
330.0 ± 10 %
0.79
40
3.5
14.0
85
390.0 ± 10 %
0.79
40
3.0
16.0
80
470.0 ± 10 %
0.79
40
3.0
26.0
62
560.0 ± 10 %
0.79
30
3.0
30.0
50
680.0 ± 10 %
0.79
30
3.0
30.0
50
820.0 ± 10 %
0.79
30
2.5
35.0
30
1000.0 ± 10 %
0.25
30
2.5
40.0
30
Note
(1) Rated DC current based on the maximum temperature rise, not
to exceed 40 °C at + 85 °C ambient
Document Number: 34044
Revision: 23-Feb-11
• Molded construction provides superior strength
and moisture resistance
• Tape and reel packaging for automatic
handling, 2000/reel, EIA-481
• Printed marking
• Compatible with vapor phase and infrared reflow
soldering
• Compliant to RoHS Directive 2002/95/EC
ELECTRICAL SPECIFICATIONS
Inductance Range: 0.010 μH to 1000 μH
Inductance Tolerance: ± 20 % for 0.010 μH to 0.39 μH
± 10 % for 0.47 μH to 1000 μH standard
± 10 %, ± 5 %, ± 3 % available
Operating Temperature: - 55 °C to + 125 °C
Coilform Material: Non-magnetic for 0.010 μH to 0.82 μH
Powdered iron for 1.0 μH to 120 μH
Ferrite for 150 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
IMC-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
(2) Recommended minimum spacing between components
PART MARKING
- Vishay Dale
- Inductance value
- Date code
For technical questions, contact: magnetics@vishay.com
www.vishay.com
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