LPT-4545
www.vishay.com
Vishay Dale
Inductors/Transformers Customizable, Surface Mount
Torodial, Kool-Mu
®
, Powdered Iron and MPP Cores
FEATURES
• Toroidal design for minimal EMI radiation in DC/DC
converter applications
• Designed to support the growing need for efficient
DC/DC converters in battery operated equipment
• Two separate windings provide versatility by ability
to connect windings in series or parallel
• Dielectric withstanding voltage: 500 V
RMS
, 60 Hz, 5 s
• Operating temperature range: - 40 °C to + 125 °C
• Supplied on tape and reel and is designed to be pick and place
compatible
• Custom versions and turns ratios available. Contact the factory
with your specifications
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
ACTUAL IND. (LOC)
(μH)
0.832
1.30
2.55
3.33
5.20
10.2
15.0
20.8
25.2
32.5
50.0
101
152
248
300
333
0.838
1.21
2.71
3.35
5.66
10.9
14.8
26.3
34.3
51.0
105
150
248
335
0.838
1.30
2.55
3.33
5.20
10.2
15.0
25.2
32.5
50.0
101
152
248
333
DCR
()
0.003
0.004
0.006
0.007
0.011
0.019
0.029
0.038
0.048
0.068
0.107
0.195
0.302
0.491
0.670
0.706
0.004
0.005
0.009
0.012
0.019
0.034
0.049
0.084
0.119
0.180
0.342
0.509
0.831
1.194
0.004
0.004
0.007
0.008
0.012
0.022
0.033
0.054
0.076
0.119
0.219
0.340
0.551
0.788
RATED I
DC
(40 °C)
6.90
6.45
5.75
5.50
4.45
3.45
2.79
2.61
2.25
1.85
1.50
1.15
0.92
0.73
0.63
0.60
6.61
6.08
5.01
4.22
3.32
2.52
2.10
1.61
1.34
1.09
0.81
0.66
0.52
0.43
7.54
6.82
5.84
5.49
4.37
3.32
2.69
2.12
1.76
1.41
1.07
0.86
0.67
0.56
IND. AT I
DC
(L
BIAS
)
(30 %)
0.51 at 7.62
0.80 at 6.10
1.57 at 4.35
2.05 at 3.81
3.20 at 3.05
6.28 at 2.18
9.26 at 1.79
12.4 at 1.53
15.5 at 1.39
20.0 at 1.22
30.8 at 0.98
62.0 at 0.69
93.4 at 0.56
153.0 at 0.44
179.0 at 0.40
205.0 at 0.38
0.53 at 7.09
0.76 at 5.91
1.71 at 3.94
2.11 at 3.54
3.57 at 2.73
6.84 at 1.97
9.31 at 1.69
16.5 at 1.27
21.6 at 1.11
32.1 at 0.91
66.2 at 0.63
94.7 at 0.53
156.0 at 0.41
211.0 at 0.35
0.54 at 11.11
0.84 at 8.89
1.64 at 6.35
2.14 at 5.56
3.35 at 4.45
6.56 at 3.18
9.68 at 2.61
16.2 at 2.02
20.9 at 1.78
32.2 at 1.43
64.8 at 1.01
97.7 at 0.82
159.0 at 0.64
214.0 at 0.56
Note
• Kool Mu
®
is a registered trademark of Spang & Company
STANDARD ELECTRICAL SPECIFICATIONS
(in parallel)
MODEL
LPT4545ER1R0LK
LPT4545ER1R5LK
LPT4545ER2R5LK
LPT4545ER3R3LK
LPT4545ER5R0LK
LPT4545ER100LK
LPT4545ER150LK
LPT4545ER200LK
LPT4545ER250LK
LPT4545ER330LK
LPT4545ER500LK
LPT4545ER101LK
LPT4545ER151LK
LPT4545ER251LK
LPT4545ER301LK
LPT4545ER331LK
LPT4545ER1R0LP
LPT4545ER1R5LP
LPT4545ER2R5LP
LPT4545ER3R3LP
LPT4545ER5R0LP
LPT4545ER100LP
LPT4545ER150LP
LPT4545ER250LP
LPT4545ER330LP
LPT4545ER500LP
LPT4545ER101LP
LPT4545ER151LP
LPT4545ER251LP
LPT4545ER331LP
LPT4545ER1R0LM
LPT4545ER1R5LM
LPT4545ER2R5LM
LPT4545ER3R3LM
LPT4545ER5R0LM
LPT4545ER100LM
LPT4545ER150LM
LPT4545ER250LM
LPT4545ER330LM
LPT4545ER500LM
LPT4545ER101LM
LPT4545ER151LM
LPT4545ER251LM
LPT4545ER331LM
STD. IND.
(μH)
1.0
1.5
2.5
3.3
5.0
10
15
20
25
33
50
100
150
250
300
330
1.0
1.5
2.5
3.3
5.0
10
15
25
33
50
100
150
250
330
1.0
1.5
2.5
3.3
5.0
10
15
25
33
50
100
150
250
330
100 μH
INDUCTANCE
VALUE
IND. TOL.
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
± 15 %
DESCRIPTION
LPT
MODEL
4545
SIZE
± 15 %
INDUCTANCE
TOLERANCE
A
CORE/HEIGHT
K = KOOL MU
®
(A)
P = POWDERED IRON (B)
M = MPP (C)
ER
PACKAGE CODE
ER = Reel
EB = Bulk
e2
JEDEC LEAD (Pb)-FREE
STANDARD
GLOBAL PART NUMBER
L
P
T
4
5
4
5
E
R
1
0
1
L
K
PRODUCT FAMILY
SIZE
PACKAGE CODE
INDUCTANCE VALUE
TOL.
CORE
Note
• Series is also available with SnPb terminations by using package code RH for tape and reel (in place of ER) or SM for bulk (in place of EB).
Revision: 04-Apr-12
Document Number: 34069
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
MPP (C)
POWDERED IRON (B)
KOOL MU
®
CORE (A)
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.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
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
purpose, non-infringement and merchantability.
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
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
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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