IHSM-4825
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.
• Tape and reel packaging for automatic handling.
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
IND.
@ 1kHz
(µH)
DCR
MAX.
RATED
INCREMENTAL
CURRENT
(Max. Amps)
CURRENT
(Amps Approx.)
4.1
(Ohms)
1.0
1.2
0.013
0.018
0.02
8.6
7.6
3.8
3.5
1.5
6.9
3.2
1.8
0.021
0.029
0.034
0.038
0.042
0.047
0.051
0.058
0.063
0.071
0.079
0.089
0.119
0.152
0.179
0.222
0.315
0.362
0.397
0.446
0.604
0.672
0.735
0.998
1.37
6.5
2.9
2.2
5.7
2.6
2.7
5.1
2.4
3.3
4.6
2.2
3.9
4.3
2.0
4.7
4.0
MATERIAL SPECIFICATIONS
Core: High resistivity ferrite core.
Encapsulant: Epoxy.
1.9
5.6
3.8
1.7
6.8
3.5
1.5
8.2
3.3
1.4
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
3.1
Terminals: 60/40 solder coated copper.
1.3
2.7
1.2
2.3
DIMENSIONS in inches [millimeters]
1.1
1.9
1.02
0.95
0.88
0.8
1.7
Recommended Pad Layout
0.660 [16.764]
1.6
1.3
1.19
1.07
0.95
0.87
0.8
0.220
[5.588]
0.220
[5.588]
0.74
0.68
0.62
0.56
0.5
0.45
0.4
0.35
0.32
0.3
0.300 [7.62]
0.180 [4.572]
0.180 [4.572]
0.73
0.66
0.58
0.5
0.170 ± 0.010
[4.32 ± 0.25]
0.540 [13.72]
Max.
1.58
0.46
0.41
0.37
0.34
0.32
0.3
0.28
0.26
0.24
1.77
0.225
[5.72]
Max.
0.28
0.26
0.24
0.23
0.2
0.17
0.15
2.51
2.73
3.36
0.075 ± 0.010
[1.91 ± 0.25]
3.75
0.250 [6.35]
Max.
4.31
0.480 ± 0.020
6.04
[12.19 ± 0.51]
6.9
PART MARKING
DESCRIPTION
— Model
— Inductance value
— Date code
IHSM-4825
MODEL
3.9µH
INDUCTANCE
VALUE
± 15%
INDUCTANCE
TOLERANCE
SAP PART NUMBERING GUIDELINES (INTERNAL)
I
H
S
M
4
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
www.vishay.com
28
For technical questions, contact Magnetics@vishay.com
Document Number 34019
Revision 20-Jan-03