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Электронный компонент: LP Series

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LP Series Miniature Low Cost Toroidal Inductors
LP Series surface mount toroidal inductors are designed for use in
applications where energy storage is required for maintenance of a highly
stable inductance when a rapid change in load current occurs. These
inductors are excellent for filtering high frequency signals while supporting
a substantial DC current as well as for AC ripple, switch mode power
supplies and for use with DC-DC Converters.
Features
 Operating frequency to 1 MHz
High energy storage with minimum saturation
High stability from no load to full load
Pick and place compatible while providing consistent and reliable
surface coplanarity
Gold plated terminal pads ensure excellent solderability
Designed as 1:1 Coupled Inductor (Series or Parallel) or as 1:1
Isolation Transformer
Manufactured in ISO-9001 approved facility
Test voltage between windings: 500 Vrms
Operating temperature range: -40C to +85C
Test frequency: Inductance measured at 0.10VAC @ 10kHz
Electrical Specifications at 25C ambient
Applications
DC-DC Converters Common Mode Filter Pulse Modulation
Switching Regulators: Step-up, Step-down, Inverting or dual output
Computer Note Books Filtering Battery Powered Equipment
Pulse Modulation
THE TALEMA GROUP World Wide Toroidal Specialists
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Note: Talema style LP-1 has been discontinued and replaced with type LC-1, an encapsulated version. See the LC data sheet for electrical
specifications and dimensions.
Notes:
1. L(H): Inductance is tested at 10mV and 10 kHz.
2. The Joule rating (LI) is the ability of the inductor to store energy.
Dimensions
LP Series Miniature High Current Toroidal Inductors
Top View
Bottom View
Dimensions: Inches (Millimeters)
Tolerance: 0.010 (0.25) unless specified otherwise
Surface Coplanarity will be <0.004(0.10)
Schematic
Pad Layout
A
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Talema
LP4-4.80-4.7
9922
B
A
Pin 1
Electrical Specifications at 25C
Talema's engineering staff can assist in the design of other inductance values and sizes.
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0
0
7
4
4
0
6
2
3
.
0
0
8
8
1
6
1
4
2
9
.
0
7
0
8
6
-
4
5
.
0
-
5
P
L
4
5
.
0
0
8
6
4
3
9
7
2
.
0
0
2
7
2
6
3
7
3
2
.
3
7
0
0
0
1
-
4
4
.
0
-
5
P
L
4
4
.
0
0
0
0
1
9
2
6
1
2
2
.
0
0
0
0
4
6
1
5
6
4
.
1
7
0
0
5
1
-
6
3
.
0
-
5
P
L
6
3
.
0
0
0
5
1
3
8
4
2
8
1
.
0
0
0
0
6
2
3
9
9
6
.
1
7
0
0
2
2
-
0
3
.
0
-
5
P
L
0
3
.
0
0
0
2
2
3
7
7
3
5
1
.
0
0
0
8
8
2
9
0
5
1
9
.
2
7
Transformer
1
2
4
3
Parallel
4
3
1
2
Series
4
3
1
2
H
C
E
B
C
A
D
D
F
0 25% 50% 75% 100% 125% 150% 175% 200%
% OF RATED ADC CURRENT
% of Initial Inductance
Curve A
Temperature Rise in C from Ambient
with ADC Current
Curve B
100%
80%
60%
40%
20%
0%
100
80
60
40
20
0
A
B
(07-03) LP Series
Talema Electronic 101 West 10th Street Rolla, MO 65401 (573) 364-2422 Fax: (573) 364-5390
www.talema.com Email: sales@talema.com