IMC-1812
Vishay Dale
www.vishay.com
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.
(MHz)
SRF DCR
MIN. MAX.
(MHz) ()
RATED DC
CURRENT
(mA) (1)
IND.
(μH)
Q
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
TOL.
L & Q
MIN.
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
Special tolerances available upon request
Operating temperature: -55 °C to +125 °C
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
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]
1.2
1.5
0.037 0.008
[0.940 0.203ꢀ
1.8
2.2
0.126 0.008
[3.200 0.203ꢀ
2.7
3.3
3.9
0.177 0.008
0.050 + 0.004
4.7
- 0.008
[1.270 +- 00..210032ꢀ
[4.500 0.203ꢀ
0.006 [0.152ꢀ
5.6
6.8
Ref. Typ.
0.126 0.008
[3.200 0.203ꢀ
8.2
Typ.
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
0.030 0.004
[0.762 0.102ꢀ
Typ.
0.158
[4.0ꢀ
0.124 [3.15ꢀ
Ref.
0.181
[4.6ꢀ
0.158
[4.0ꢀ
0.024 (1)
[0.6ꢀ
Guidelines for
Parallel Component
Printed Circuit
Mounting Pads on
IMC-1812 Chip
Inductors
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
0.059
[1.5ꢀ
0.059
[1.5ꢀ
0.118 [3.0ꢀ
Note
(1)
Recommended minimum spacing between components
85
80
62
PART MARKING
- Vishay Dale
- Inductance code
- Date code
50
50
30
30
Note
(1)
Rated DC current based on the maximum temperature rise, not
to exceed 40 °C at +85 °C ambient
Revision: 10-Sep-2019
Document Number: 34044
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
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