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LPT-4545-xxxLA, LB, LC
Vishay Dale
Inductors/Transformers, Customizable, Surface Mount Torodial, Kool-Mu(R), Powdered Iron and MPP Cores
FEATURES
* Toroidal design for minimal EMI radiation in DC to DC converter applications. * Designed to support the growing need for efficient DC to DC converters in battery operated equipment. * Two separate windings provide versatility by ability to connect windings in series or parallel. * 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. * Half height parts available upon request.
DIMENSIONS in inches [millimeters]
Pad Layout
0.160 [4.06]
STANDARD ELECTRICAL SPECIFICATIONS [In Parallel]
STANDARD ACTUAL IND. - H RATED IDC MODEL (LOC) 15% LA=KOOL-MU(R) CORE IND. VALUES (40C ) 0.832 6.90 1.0 LPT-4545-1R0LA 1.30 6.45 1.5 LPT-4545-1R5LA 2.55 5.75 2.5 LPT-4545-2R5LA 3.33 5.50 3.3 LPT-4545-3R3LA 5.20 4.45 5.0 LPT-4545-5R0LA 10.2 3.45 10 LPT-4545-100LA 15.0 2.79 15 LPT-4545-150LA 20.8 2.61 20 LPT-4545-200LA 25.2 2.25 25 LPT-4545-250LA 32.5 1.85 33 LPT-4545-330LA 50.0 1.50 50 LPT-4545-500LA 101 1.15 100 LPT-4545-101LA 152 0.92 150 LPT-4545-151LA 248 0.73 250 LPT-4545-251LA 300 0.63 300 LPT-4545-301LA 333 0.60 330 LPT-4545-331LA LB=POWDER IRON 0.838 6.61 1.0 LPT-4545-1R0LB 1.21 6.08 1.5 LPT-4545-1R5LB 2.71 5.01 2.5 LPT-4545-2R5LB 3.35 4.22 3.3 LPT-4545-3R3LB 5.66 3.32 5.0 LPT-4545-5R0LB 10.9 2.52 10 LPT-4545-100LB 14.8 2.10 15 LPT-4545-150LB 26.3 1.61 25 LPT-4545-250LB 34.3 1.34 33 LPT-4545-330LB 51.0 1.09 50 LPT-4545-500LB 105 0.81 100 LPT-4545-101LB 150 0.66 150 LPT-4545-151LB 248 0.52 250 LPT-4545-251LB 335 0.43 330 LPT-4545-331LB LC=MPP 7.54 1.0 0.838 LPT-4545-1R0LC 6.82 1.5 1.30 LPT-4545-1R5LC 5.84 2.5 2.55 LPT-4545-2R5LC 5.49 3.3 3.33 LPT-4545-3R3LC 4.37 5.0 5.20 LPT-4545-5R0LC 3.32 10 10.2 LPT-4545-100LC 2.69 15 15.0 LPT-4545-150LC 2.12 25 25.2 LPT-4545-250LC 1.76 33 32.5 LPT-4545-330LC 1.41 50 50.0 LPT-4545-500LC 1.07 100 101 LPT-4545-101LC 0.86 150 152 LPT-4545-151LC 0.67 250 248 LPT-4545-251LC 0.56 330 333 LPT-4545-331LC

0.492 sq. [12.5 sq.] 0.120 [3.05]
0.492 sq. [12.5 sq.]
IND. @ IDC (LBIAS) [30%] 0.51 @ 7.62 0.80 @ 6.10 1.57 @ 4.35 2.05 @ 3.81 3.20 @ 3.05 6.28 @ 2.18 9.26 @ 1.79 12.4 @ 1.53 15.5 @ 1.39 20.0 @ 1.22 30.8 @ 0.98 62.0 @ 0.69 93.4 @ 0.56 153.0 @ 0.44 179.0 @ 0.40 205.0 @ 0.38 0.53 @ 7.09 0.76 @ 5.91 1.71 @ 3.94 2.11 @ 3.54 3.57 @ 2.73 6.84 @ 1.97 9.31 @ 1.69 16.5 @ 1.27 21.6 @ 1.11 32.1 @ 0.91 66.2 @ 0.63 94.7 @ 0.53 156.0 @ 0.41 211.0 @ 0.35 0.54 @ 11.11 0.84 @ 8.89 1.64 @ 6.35 2.14 @ 5.56 3.35 @ 4.45 6.56 @ 3.18 9.68 @ 2.61 16.2 @ 2.02 20.9 @ 1.78 32.2 @ 1.43 64.8 @ 1.01 97.7 @ 0.82 159.0 @ 0.64 214.0 @ 0.56
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
Dimensional Outline
0.450 0.005 Dia. [11.43 0.127]
1
0.462 0.005 Dia. [11.73 0.127]
2
Vishay Dale
LPT-4545xxxLX
3
4
0.550 [13.97] Max.
0.250 [6.350] Max.
DESCRIPTION
LPT MODEL 4545 SIZE 100 INDUCTANCE VALUE (H)
15% INDUCTANCE TOLERANCE
LA/LB/LC CORE/HEIGHT LA = KOOL-MU(R) LB = POWDER IRON LC = MPP
SAP PART NUMBERING GUIDELINES (INTERNAL)
L P T 4 5
SIZE
4
5
R
H
1
0
1
L
TOL.
K
CORE
PRODUCT FAMILY
PACKAGE CODE
INDUCTANCE VALUE
See the end of this data book for conversion tables
www.vishay.com 112
For technical questions, contact Magnetics@vishay.com
Document Number 34069 Revision 28-Aug-02
LPT-4545-xxxLA, LB, LC
Inductors/Transformers, Customizable, Surface Mount Torodial, Kool-Mu(R), Powdered Iron and MPP Cores
SCHEMATICS - CONNECTION DIAGRAMS
Transformer
1 4 1
Vishay Dale
Parallel
4 1
Series
4
2
3
2
3
2
3
PART MARKING
-- Vishay Dale -- Model number -- Pin 1 identification
PACKAGING in inches [millimeters]
Pocket Tape Orientation
Carrier Tape Width Pitch Parts per 13" [330.2] Reel 0.945 [24.0] 0.630 [16.0] 600
DALE LPT-[ ] [ ] [DATE CODE]
DALE LPT-[ ] [ ] [DATE CODE]
DALE LPT-[ ] [ ] [DATE CODE]
All embossed carrier tape packaging will be in compliance with the latest revision of EIA-481.
REELING DIRECTION
Document Number 34069 Revision 28-Aug-02
For technical questions, contact Magnetics@vishay.com
www.vishay.com 113

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