IHSM-3825
Vishay Dale
High Current, Surface Mount Inductor
FEATURES
• Flame retardant encapsulant (UL 94V-0).
• Completely encapsulated winding provides superior
environmental protection and moisture resistance.
• High current unit in surface mount package printed with
model, inductance value and date code.
• Compatible with infrared or conventional reflow soldering
methods.
• Pick and place compatible.
APPLICATIONS
Excellent power line noise filters, filters for switching
regulated power supplies, DC/DC converters, SCR and
Triac controls and RFI suppression.
ELECTRICAL SPECIFICATIONS
Inductance: Measured at 1 volt with no DC current.
Inductance Tolerance: ± 15%.
Incremental Current: The typical current at which the
inductance will be decreased by 5% from its initial zero
DC value.
Operating Temperature: - 55°C to + 125°C (no load);
- 55°C to + 85°C (at full rated current).
STANDARD ELECTRICAL SPECIFICATIONS
RATED
INCREMENTAL
IND.
@ 1kHz
(µH)
DCR
CURRENT
CURRENT
MAX.
(Max. Amps) (Amps Approx.)
(Ohms)
5.11
4.93
4.63
4.27
3.61
3.18
2.94
2.57
2.17
2.08
1.94
1.83
1.74
1.50
1.29
1.13
1.05
0.98
0.92
0.86
0.74
0.65
0.61
0.56
0.48
0.45
0.38
0.36
0.34
0.29
0.27
0.23
0.22
0.21
0.18
0.17
0.16
4.41
4.11
3.66
3.22
2.62
2.40
2.13
2.05
1.93
1.79
1.62
1.50
1.36
1.26
1.11
1.05
0.96
0.86
0.75
0.72
0.68
0.64
0.58
0.51
0.42
0.40
0.37
0.33
0.28
0.26
0.23
0.20
0.19
0.17
0.15
0.14
0.13
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
0.015
0.016
0.017
0.022
0.031
0.038
0.045
0.062
0.083
0.091
0.101
0.118
0.126
0.170
0.228
0.306
0.336
0.389
0.440
0.490
0.646
0.845
1.040
1.240
1.440
2.180
2.900
3.280
3.650
4.400
5.070
5.900
7.670
8.850
10.20
11.58
12.97
MATERIAL SPECIFICATIONS
Core: High resistivity ferrite core.
Encapsulant: Epoxy.
Terminals: 60/40 solder coated copper.
5.6
6.8
8.2
DIMENSIONS in inches [millimeters]
Recommended Pad Layout
0.560 [14.224]
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
0.220
[5.588]
0.220
[5.588]
0.200 [5.08]
0.180 [4.572]
0.180 [4.572]
0.170 ±
.010
0.440 [11.18]
Max.
[4.32 ±
0.25]
0.225
[5.72]
Max.
0.075 ± 0.010
[1.91 ± 0.25]
0.380 ± 0.020
[9.65 ± 0.51]
0.250 [6.35]
Max.
PART MARKING
— Model
— Inductance value
— Date code
DESCRIPTION
IHSM-3825
3.9µH
± 15%
MODEL
INDUCTANCE
VALUE
INDUCTANCE
TOLERANCE
SAP PART NUMBERING GUIDELINES (INTERNAL)
I
H
S
M
3
8
2
5
R
E
3
R
9
L
PACKAGE
CODE
INDUCTANCE
VALUE
TOL.
PRODUCT FAMILY
See the end of this data book for conversion tables
SIZE
Document Number 34018
Revision 20-Jan-03
For technical questions, contact Magnetics@vishay.com
www.vishay.com
27