IHSM-4825
Vishay Dale
High Current, Surface Mount Inductors
FEATURES
• Flame retardant encapsulant (UL 94 V-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
• Compliant to RoHS Directive 2002/95/EC
STANDARD ELECTRICAL SPECIFICATIONS
IND.
AT 1 kHz
(μH)
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
DCR
MAX.
()
0.013
0.018
0.02
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
1.58
1.77
2.51
2.73
3.36
3.75
4.31
6.04
6.9
RATED
INCREMENTAL
CURRENT MAX. CURRENT APPROX.
(A)
(A)
8.6
4.1
7.6
3.8
6.9
3.5
6.5
3.2
5.7
2.9
5.1
2.6
4.6
2.4
4.3
2.2
4.0
2.0
3.8
1.9
3.5
1.7
3.3
1.5
3.1
1.4
2.7
1.3
2.3
1.2
1.9
1.1
1.7
1.02
1.6
0.95
1.3
0.88
1.19
0.8
1.07
0.74
0.95
0.68
0.87
0.62
0.8
0.56
0.73
0.5
0.66
0.45
0.58
0.4
0.5
0.35
0.46
0.32
0.41
0.3
0.37
0.28
0.34
0.26
0.32
0.24
0.3
0.23
0.28
0.2
0.26
0.17
0.24
0.15
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 V 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)
MECHANICAL SPECIFICATIONS
Core:
High resistivity ferrite core
Encapsulant:
Epoxy
Terminals:
100 % Sn over Ni
DIMENSIONS
in inches [millimeters]
0.660 [16.764]
Recommended Pad Layout
0.220
[5.588]
0.300 [7.62]
0.220
[5.588]
0.180 [4.572]
0.540 [13.72]
Max.
0.225
[5.72]
Max.
0.075 ± 0.010
[1.91 ± 0.25]
0.480 ± 0.020
[12.19 ± 0.51]
0.180 [4.572]
0.170 ± 0.010
[4.32 ± 0.25]
0.250 [6.35]
Max.
PART MARKING
- Model
- Inductance value
- Date code
DESCRIPTION
IHSM-4825
MODEL
3.9 μH
INDUCTANCE VALUE
± 15 %
INDUCTANCE TOLERANCE
ER
PACKAGE CODE
e3
JEDEC LEAD (Pb)-FREE STANDARD
GLOBAL PART NUMBER
I
H
S
M
4
8
SIZE
2
5
E
R
3
R
INDUCTANCE
VALUE
9
L
TOL.
PRODUCT FAMILY
PACKAGE
CODE
Document Number: 34019
Revision: 04-Feb-11
For technical questions, contact:
magnetics@vishay.com
www.vishay.com
1
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
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the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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