IMC-1812
Vishay Dale
Wirewound, Surface Mount, Molded Inductors
FEATURES
• Molded construction provides superior strength
and moisture resistance
• Tape and reel packaging for automatic
handling, 2000/reel, EIA-481
• Printed marking
STANDARD ELECTRICAL SPECIFICATIONS
• Compatible with vapor phase and infrared reflow
soldering
TEST FREQ.
SRF DCR RATED DC
(MHz)
IND.
(μH)
Q
MIN. MAX. CURRENT
TOL.
L & Q
MIN. (MHz) ()
(mA) (1)
• Compliant to RoHS Directive 2002/95/EC
0.010
0.012
0.018
0.022
0.027
0.033
0.039
0.047
0.056
0.068
0.082
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
20 %
20 %
20 %
20 %
20 %
20 %
20 %
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 %
10 %
10 %
10 %
10 %
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
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
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.25
50 1000 0.20
50 1000 0.20
50 1000 0.20
50 1000 0.20
50 1000 0.20
50 1000 0.30
50 1000 0.30
50 1000 0.30
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
430
380
355
285
270
250
450
430
410
390
380
370
355
330
315
300
285
270
250
225
200
190
180
170
160
150
140
135
130
120
110
110
105
102
100
92
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
40
40
40
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
50
50
50
50
50
50
50
50
50
40
40
40
40
40
40
40
40
40
30
30
30
30
900
800
700
650
600
500
400
350
300
250
220
190
170
150
140
100
80.0 0.55
70.0 0.60
60.0 0.65
55.0 0.70
50.0 0.75
45.0 0.80
40.0 0.90
35.0 1.00
33.0 1.10
27.0 1.20
25.0 1.40
20.0 1.60
18.0 2.00
17.0 2.50
15.0 2.80
13.0 3.20
12.0 3.60
11.0 4.00
11.0 4.50
10.0 5.00
9.0
9.0
8.0
8.0
6.0
5.0
5.0
4.0
4.0
3.5
3.0
3.0
3.0
3.0
2.5
2.5
0.35
0.35
0.40
0.32
0.30
0.30
0.35
0.40
0.45
0.55
0.70
0.80
1.20
1.40
1.60
0.50
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
1.2
1.5
1.8
DIMENSIONS in inches [millimeters]
2.2
2.7
0.037 0.008
[0.940 0.203ꢀ
3.3
3.9
0.126 0.008
[3.200 0.203ꢀ
4.7
5.6
6.8
0.177 0.008
0.050 + 0.004
8.2
- 0.008
[1.270 +- 00..210032ꢀ
[4.500 0.203ꢀ
0.006 [0.152ꢀ
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
Ref. Typ.
0.126 0.008
Typ.
[3.200 0.203ꢀ
0.030 0.004
[0.762 0.102ꢀ
Typ.
0.158
[4.0ꢀ
0.124 [3.15ꢀ
Ref.
0.181
[4.6ꢀ
5.50
6.00
7.00
8.00
8.00
9.00
9.50
10.0
12.0
14.0
16.0
26.0
30.0
30.0
35.0
40.0
0.158
[4.0ꢀ
0.024 (1)
[0.6ꢀ
Guidelines for
Parallel Component
Printed Circuit
Mounting Pads on
IMC-1812 Chip
Inductors
0.059
[1.5ꢀ
0.059
[1.5ꢀ
0.118 [3.0ꢀ
85
Note
80
(2)
62
Recommended minimum spacing between components
50
50
30
PART MARKING
30
- Vishay Dale
- Inductance value
- Date code
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
For technical questions, contact: magnetics@vishay.com
www.vishay.com
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