LPT-3535xxx-LA, LB, LC
Vishay Dale
Document Number 34068
Revision 04-Dec-01 www.vishay.com
65
For technical questions, contact Magnetics@vishay.com
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 oper
ated 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.
Inductors/Transformers
Customizable, Surface Mount Torodial,
Kool-Mu®, Powdered Iron and MPP Cores
LPT-3535-1R0LC
LPT-3535-1R5LC
LPT-3535-2R5LC
LPT-3535-3R3LC
LPT-3535-5R0LC
LPT-3535-100LC
LPT-3535-150LC
LPT-3535-250LC
LPT-3535-330LC
LPT-3535-500LC
LPT-3535-101LC
LPT-3535-151LC
LPT-3535-251LC
LPT-3535-331LC
LPT-3535-1R0LA
LPT-3535-1R5LA
LPT-3535-2R5LA
LPT-3535-3R3LA
LPT-3535-5R0LA
LPT-3535-100LA
LPT-3535-150LA
LPT-3535-250LA
LPT-3535-330LA
LPT-3535-500LA
LPT-3535-101LA
LPT-3535-151LA
LPT-3535-251LA
LPT-3535-331LA
STANDARD ELECTRICAL SPECIFICATIONS (In Parallel)
MODEL
LA=KOOL-MU® CORE ACTUAL INDUCTANCE – mH
(LOC) ± 15% RATED IDC
(40∞C ) INDUCTANCE @ IDC
(LBIAS) [30%] DCR
W
0.800
1.80
2.45
3.20
5.00
11.3
16.2
26.5
33.8
51.2
101
151
252
328
6.42
4.77
4.45
3.73
3.01
1.95
1.59
1.25
1.05
0.84
0.63
0.57
0.40
0.33
0.48 @ 7.05
1.07 @ 4.70
1.46 @ 4.03
1.90 @ 3.52
2.98 @ 2.82
6.69 @ 1.88
9.64 @ 1.57
15.7 @ 1.23
20.1 @ 1.08
30.5 @ 0.88
60.2 @ 0.63
90.0 @ 0.51
150.0 @ 0.40
195.0 @ 0.35
0.005
0.009
0.011
0.015
0.023
0.055
0.081
0.131
0.182
0.280
0.514
0.775
1.279
1.837
¨¨
¨¨
¨
LB=POWDER IRON 0.882
1.57
2.45
3.53
4.80
10.8
15.3
25.1
33.5
51.8
104
153
250
330
5.10
4.48
3.58
2.96
2.41
1.58
1.29
1.03
0.85
0.68
0.51
0.41
0.33
0.27
0.56 @ 4.29
0.99 @ 3.21
1.54 @ 2.57
2.22 @ 2.14
3.03 @ 1.84
6.81 @ 1.22
9.65 @ 1.03
15.8 @ 0.80
21.1 @ 0.70
32.7 @ 0.56
65.2 @ 0.40
96.3 @ 0.33
157.0 @ 0.25
208.0 @ 0.22
0.004
0.005
0.009
0.013
0.018
0.043
0.064
0.103
0.147
0.230
0.424
0.645
1.031
1.463
LC=MPP
LPT-3535-1R0LB
LPT-3535-1R5LB
LPT-3535-2R5LB
LPT-3535-3R3LB
LPT-3535-5R0LB
LPT-3535-100LB
LPT-3535-150LB
LPT-3535-250LB
LPT-3535-330LB
LPT-3535-500LB
LPT-3535-101LB
LPT-3535-151LB
LPT-3535-251LB
LPT-3535-331LB
0.800
1.80
2.45
3.20
5.00
11.3
16.2
26.5
33.8
51.2
101
151
252
328
6.45
4.80
4.46
3.73
3.02
1.94
1.59
1.26
1.05
0.84
0.64
0.52
0.40
0.33
0.52 @ 7.05
1.16 @ 4.70
1.58 @ 4.03
2.06 @ 3.52
3.22 @ 2.82
7.25 @ 1.88
10.43 @ 1.57
17.0 @ 1.23
21.8 @ 1.08
33.0 @ 0.88
97.4 @ 0.51
65.2 @ 0.63
162.0 @ 0.51
211.0 @ 0.35
0.005
0.009
0.011
0.015
0.023
0.055
0.081
0.131
0.182
0.280
0.514
0.775
1.279
1.837
1.0
1.5
2.5
3.3
5.0
10
15
25
33
50
100
150
250
330
STANDARD
INDUCTANCE VALUES
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
LPT-3535xxx-LA, LB, LC
Vishay Dale
Document Number 34068
Revision 04-Dec-01
www.vishay.com
66 For technical questions, contact Magnetics@vishay.com
2
3
1
4
Vishay Dale
LPT-3535-
xxxLX
SCHEMATICS - CONNECTION DIAGRAMS
Transformer Series
Parallel
1
23
4
1
2
4
3
1
23
4
RECOMMENDED LAYOUT PATTERN (Top V iew)
[Numbers in brackets indicate millimeters]
0.160
[4.06]
0.120
[3.05]
0.392 sq.
[9.96 sq.]
0.392 sq.
[9.96 sq.]
DIMENSIONS in inches [millimeters]
0.350 ± 0.005 Dia.
[8.89 ± 0.127] 0.362 ± 0.005 Dia.
[9.19 ± 0.127]
0.450 [11.43]
Max.
0.235
[5.97]
Max.
PART MARKING
— Vishay Dale
— Model number
— Pin 1 identification
PACKAGING in inches [millimeters]
Pocket Tape Orientation
ORDERING INFORMATION
0.945
[24.0]
0.630
[16.0]
600
Carrier Tape Width
Pitch
Parts per 13" [330.2] Reel
All embossed carrier tape
packaging will be in
compliance with the latest
revision of
EIA-481.
100
INDUCTANCE
VALUE (mH)
3535
SIZE ± 15%
INDUCTANCE TOLERANCE LA/LB/LC
CORE/HEIGHT
LA = KOOL-MU®
LB = POWDER IRON
LC = MPP
LPT
MODEL
DALE
LPT-[ ]
[ ]
[DATE CODE]
DALE
LPT-[ ]
[ ]
[DATE CODE]
DALE
LPT-[ ]
[ ]
[DATE CODE]
REELING DIRECTION