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IHSM-3825
Vishay Dale
Document Number 34018
Revision 20-Jan-03
For technical questions, contact Magnetics@vishay.com
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).
MATERIAL SPECIFICATIONS
Core:
High resistivity ferrite core.
Encapsulant:
Epoxy.
Terminals:
60/40 solder coated copper.
DIMENSIONS
in inches [millimeters]
STANDARD ELECTRICAL SPECIFICATIONS
IND.
@ 1kHz
(
μ
H)
(Ohms)
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
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
12.97
3.9
μ
H
INDUCTANCE
VALUE
IHSM-3825
MODEL
DESCRIPTION
±
15%
INDUCTANCE
TOLERANCE
0.250 [6.35]
Max.
0.170
±
.010
[4.32
±
0.25]
DCR
RATED
CURRENT
(Max. Amps)
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
INCREMENTAL
CURRENT
(Amps Approx.)
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
PART MARKING
— Model
— Inductance value
— Date code
0.225
[5.72]
Max.
0.380
0.020
[9.65
±
0.51]
0.075
±
0.010
[1.91
0.25]
0.440 [11.18]
Max.
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
SAP PART NUMBERING GUIDELINES (INTERNAL)
PRODUCT FAMILY
SIZE
See the end of this data book for conversion tables
INDUCTANCE
VALUE
PACKAGE
CODE
TOL.
I
H
S
M
3
8
2
5
R
E
3
R
9
L
0.560 [14.224]
Recommended Pad Layout
0.180 [4.572]
0.180 [4.572]
0.200 [5.08]
0.220
[5.588]
0.220
[5.588]