IMC-1812
www.vishay.com
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 
TEST FREQ. SRF DCR
RATED DC soldering
(MHz) MIN. MAX.
IND. CURRENT
Q
 Material categorization: for definitions of compliance 
(1)
(MHz) ()
(H) (mA) 
TOL. L & Q MIN.
please see www.vishay.com/doc?99912 
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
ELECTRICAL SPECIFICATIONS
0.022  20 % 50.0 50 1000 0.20 450
Inductance range: 0.010 H to 1000 H
0.027  20 % 50.0 50 1000 0.20 450
0.033  20 % 50.0 50 1000 0.30 450
Special tolerances available upon request
0.039  20 % 50.0 50 1000 0.30 450
0.047  20 % 50.0 50 1000 0.30 450
Operating temperature: -55 C to +125 C
0.056  20 % 50.0 40 900 0.35 450
Coilform material: Non-magnetic for 0.010 H to 0.82 H
0.068  20 % 50.0 40 800 0.35 450
0.082  20 % 50.0 40 700 0.40 450
Powdered iron for 1.0 H to 120 H
0.10  20 % 25.2 30 650 0.32 450
Ferrite for 150 H to 1000 H
0.12  20 % 25.2 30 600 0.30 450
0.15  20 % 25.2 30 500 0.30 450
TEST EQUIPMENT
0.18  20 % 25.2 30 400 0.35 450
0.22  20 % 25.2 30 350 0.40 450
 H/P 4342A Q meter with Vishay Dale test fixture or 
0.27  20 % 25.2 30 300 0.45 450
equivalent
0.33  20 % 25.2 30 250 0.55 430
0.39  20 % 25.2 30 220 0.70 380
H/P 4191A RF impedance analyzer (for SRF 
0.47  10 % 25.2 30 190 0.80 355
measurements)
0.56  10 % 25.2 30 170 1.20 285
0.68  10 % 25.2 30 150 1.40 270
 Wheatstone bridge
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
DIMENSIONS in inches [millimeters]
1.5  10 % 7.96 50 70.0 0.60 410
1.8  10 % 7.96 50 60.0 0.65 390
0.037  0.008
2.2  10 % 7.96 50 55.0 0.70 380
[0.940  0.203]
2.7  10 % 7.96 50 50.0 0.75 370 0.126  0.008
3.3  10 % 7.96 50 45.0 0.80 355 [3.200  0.203]
3.9  10 % 7.96 50 40.0 0.90 330
4.7  10 % 7.96 50 35.0 1.00 315
0.177  0.008
+ 0.004
5.6  10 % 7.96 50 33.0 1.10 300
0.050
- 0.008
[4.500  0.203]
0.006 [0.152]
6.8  10 % 7.96 50 27.0 1.20 285
+ 0.102
[1.270 ]
8.2  10 % 7.96 50 25.0 1.40 270 Ref. Typ.
- 0.203
0.126  0.008
10.0  10 % 2.52 50 20.0 1.60 250
Typ.
[3.200  0.203]
12.0  10 % 2.52 50 18.0 2.00 225
0.030  0.004
15.0  10 % 2.52 50 17.0 2.50 200
[0.762  0.102]
18.0  10 % 2.52 50 15.0 2.80 190
Typ.
22.0  10 % 2.52 50 13.0 3.20 180
0.158
27.0  10 % 2.52 50 12.0 3.60 170
[4.0]
33.0  10 % 2.52 50 11.0 4.00 160
0.124 [3.15]
0.181
39.0  10 % 2.52 50 11.0 4.50 150
Ref.
[4.6]
47.0  10 % 2.52 50 10.0 5.00 140
0.158
56.0  10 % 2.52 50 9.0 5.50 135
Guidelines for (1)
0.024 
68.0  10 % 2.52 50 9.0 6.00 130 [4.0]
Parallel Component
[0.6]
82.0  10 % 2.52 50 8.0 7.00 120
Printed Circuit
0.059 0.059
100.0  10 % 0.79 40 8.0 8.00 110
Mounting Pads on
120.0  10 % 0.79 40 6.0 8.00 110 [1.5] [1.5]
IMC-1812 Chip
150.0  10 % 0.79 40 5.0 9.00 105
Inductors 0.118 [3.0]
180.0  10 % 0.79 40 5.0 9.50 102
220.0  10 % 0.79 40 4.0 10.0 100
Note
270.0  10 % 0.79 40 4.0 12.0 92
(2)
330.0  10 % 0.79 40 3.5 14.0 85
Recommended minimum spacing between components
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
PART MARKING
680.0  10 % 0.79 30 3.0 30.0 50
820.0  10 % 0.79 30 2.5 35.0 30
- Vishay Dale 
1000.0  10 % 0.25 30 2.5 40.0 30
- Inductance value 
Note - Date code
(1)
Rated DC current based on the maximum temperature rise, not 
to exceed 40 C at +85 C ambient
 
Revision: 21-Jul-15 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                               
IMC-1812
www.vishay.com
Vishay Dale
DESCRIPTION
10 H
IMC-1812  10 % ER e3
MODEL INDUCTANCE VALUE INDUCTANCE TOLERANCE PACKAGE CODE JEDEC LEAD (Pb)-FREE STANDARD
GLOBAL PART NUMBER
I M C 1 8 1 2 E R 1 0 0 K
PRODUCT SIZE PACKAGE INDUCTANCE TOL.
FAMILY CODE VALUE
 
Revision: 21-Jul-15 Document Number: 34044
2
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