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LP -Mini SMD Chokes -Low cost

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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.



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.





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