NORDTEK DANMARK - LP -Mini SMD Chokes -Low cost - www.nordtek.com

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LP -Mini SMD Chokes -Low cost

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.   LP Series - Surface Mount Toroidal Inductors
     

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 co-planarity
  • 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: -40°C to +85°C
  • Test frequency: Inductance measured at 0.10VAC @ 10kHz
 


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

LP2-xxx-xx & LP3-xxx-xx
LP4-xxx-xx & LP5-xxx-xx
Mechanical Layout

Electrical Specifications at 25°C

Part Number Parallel Connected Series Connected Energy Storage (µJ) * Dimensions - Inches (Millimeters)
Full Load
Current
(ADC)
LO(µH) ±15% No Load DCR mOhm Full Load Current (ADC) LO(µH) ±15% No Load DCR mOhm A B C D E F H
 LP2-4.40-2.2
 LP2-3.10-4.7
 LP2-2.08-10
4.40
3.10
2.08
2.2
4.7
10
7
13
28
2.20
1.55
1.04
8.8
18.8
40
28
52
16.4
16.0
16.4
0.354
(9.0)
0.354
(9.0)
0.098
(2.5)
0.098
(2.5)
0.157
(4.0)
0.157
(4.0)
0.232
(5.9)
 LP2-1.68-15
 LP2-1.40-22
 LP2-1.32-33
1.68
1.40
1.32
15
22
33
52
70
83
0.84
0.70
0.66
60
88
132
208
280
332
16.0
16.2
16.0
 LP2-1.08-47
 LP2-0.80-68
 LP2-0.66-100
1.08
0.80
0.66
47
68
100
139
241
295
0.54
0.40
0.33
188
272
400
556
964
1,180
21.2
20.2
15.8
 LP2-0.54-150
 LP2-0.44-220
 LP2-0.36-330
0.54
0.44
0.36
150
220
330
521
784
960
0.27
0.22
0.18
600
880
1,320
2,084
3,136
3,840
16.1
15.8
15.8
 LP3-6.64-2.2
 LP3-4.46-4.7
 LP3-3.00-10
6.64
4.46
3.00
2.2
4.7
10
5
12
26
3.32
2.23
1.50
8.8
18.8
40
20
48
104
31.7
32.2
32.8
0.433
(11.0)
0.433
(11.0)
0.098
(2.5)
0.098
(2.5)
0.236
(6.0)
0.236
(6.0)
0.248
(6.3)
 LP3-2.42-15
 LP3-2.00-22
 LP3-1.62-33
2.42
2.00
1.62
15
22
33
37
55
84
1.21
1.00
0.81
60
88
132
148
220
336
31.8
32.7
32.1
 LP3-1.34-47
 LP3-1.12-68
 LP3-0.94-100
1.34
1.12
0.94
47
68
100
127
188
250
0.67
0.56
0.47
188
272
400
508
752
1,000
32.3
32.4
32.2
 LP3-0.76-150
 LP3-0.62-220
 LP3-0.50-330
0.76
0.62
0.50
150
220
330
346
478
671
0.38
0.31
0.25
600
880
1,320
1,384
1,912
2,684
31.8
31.2
30.4
 LP3-0.42-470
 LP3-0.36-680
0.42
0.36
470
680
1.003
1.500
0.21
0.18
1,880
2,720
4,012
6,000
30.5
32.3

Note: LP-1 has been discontinued and replaced with type LC-1, an encapsulated version. See the LC data sheet for electrical specifications and dimensions.

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Electrical Specifications at 25°C

Part Number Parallel Connected Series Connected Energy Storage (µJ)* Dimensions Inches (Millimeters)
Full Load Current (ADC) LO(µH) ±15% No Load DCR mOhm Full Load Current (ADC) LO(µH) ±15% No Load DCR mOhm A B C D E F H
 LP4-7.40-2.2
 LP4-4.80-4.7
 LP4-3.36-10
7.40
4.80
3.36
2.2
4.7
10
5
9
21
3.70
2.40
1.68
8.8
18.8
40
20
36
84
42.5
43.2
43.2
0.472
(12.0)
0.472
(12.0)
0.118
(3.0)
0.118
(3.0)
0.236
(6.0)
0.236
(6.0)
0.248
(6.3)
 LP4-2.80-15
 LP4-2.30-22
 LP4-1.86-33
2.80
2.30
1.86
15
22
33
35
50
76
1.40
1.15
0.93
60
88
132
140
200
304
43.2
43.6
43.9
 LP4-1.56-47
 LP4-1.32-68
 LP4-1.06-100
1.56
1.32
1.08
47
68
100
112
167
250
0.78
0.66
0.54
188
272
400
448
668
1,000
43.1
43.4
42.9
 LP4-0.88-150
 LP4-0.72-220
 LP4-60-330
0.88
0.72
0.60
150
220
330
307
470
657
0.44
0.36
0.30
600
880
1,320
1,228
1,880
2,628
42.8
42.0
44.0
 LP4-0.50-470
 LP4-0.40-680
 LP4-0.34-1000
0.50
0.40
0.34
470
680
1,000
900
1,355
2,042
0.25
0.20
0.17
1,880
2,720
4,000
3,600
5,420
8,168
43.6
40.2
42.5
 LP5-6.40-4.7
 LP5-4.50-10
 LP5-3.50-15
6.40
4.50
3.50
4.7
10
15
7
16
28
3.20
2.25
1.75
18.8
40
60
28
64
112
73.9
71.6
71.6
0.472
(12.0)
0.472
(12.0)
0.118
(3.0)
0.118
(3.0)
0.236
(6.0)
0.236
(6.0)
0.327
(8.3)
 LP5-3.00-22
 LP5-2.44-33
 LP5-2.04-47
3.00
2.44
2.04
22
33
47
38
52
72
1.50
1.22
1.02
88
132
188
152
208
288
71.6
72.6
72.1
 LP5-1.70-68
 LP5-1.40-100
 LP5-1.16-150
1.70
1.40
1.16
68
100
150
86
128
218
0.85
0.70
0.58
272
400
600
344
512
872
71.3
71.6
73.4
 LP5-0.94-220
 LP5-0.78-330
 LP5-0.64-470
0.94
0.78
0.64
220
330
470
298
451
604
0.47
0.39
0.32
880
1,320
1,880
1,192
1,804
2,416
71.5
73.8
70.9
 LP5-0.54-680
 LP5-0.44-1000
 LP5-0.36-1500
 LP5-0.30-2200
0.54
0.44
0.36
0.30
680
1,000
1,500
2,200
934
1,629
2,483
3,773
0.27
0.22
0.18
0.15
2,720
4,000
6,000
8,800
3,736
6,516
9,932
15,092
73.2
71.4
71.6
72.9

We can assist in the design of other inductance values and sizes.

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Notes>
1. L(µH): Inductance is tested at 10mV and 10 kHz.
2. The µJoule rating (1/2Ll2) is the ability of the inductor to store energy.

Mechanical Layout

Mechanical Layout

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