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SD - High Stability Storage

SD Series storage chokes provide excellent efficiency and field modulation when used as loading coils for interim energy storage with switch mode power supplies. The use of MPP cores allows compact size, a highly stable inductance over a wide bias current range and high "Q" with operating frequencies to 200kHz.

Features

  • Operating frequency to 200 kHz
  • Small size and high "Q"
  • Highly stable inductance with changing bias current
  • Fully encapsulated styles available meeting class GFK (-40°C to +125°C, humidity class F) per DIN 40040
  • Manufactured in ISO-90001 approved factory  
   SD - High Stability Storage


Mounting Style
Ordering Key

Electrical Specifications at 25 °C

Part Number IDC
(Amps)		 L(µH)
Typ.
at rated
Current		 LO(µH)
±15%
No Load		 DCR
mOhms
Typ.		 Energy
Storage
(µJ)1		 Schematic 2
Mounting
Style
O•F•V		 Coil Size
O.D. x Ht.
(a x b)		 Housing Size Mounting Style
Terminal Ød
F V O F V
 SD_-0.63-400
 SD_-0.63-500
 SD_-0.63-630
 SD_-0.63-1000
 SD_-0.63-2000
 SD_-0.63-2500
 SD_-0.63-4000
 SD_-0.63-6000		 0.63
0.63
0.63
0.63
0.63
0.63
0.63
0.63		 400
500
630
1,000
2,000
2,500
4,000
6,000		 474
620
820
1,157
2,695
3,080
5,625
7,600		 537
670
563
650
992
730
1,000
1,150		 79
99
12
198
397
496
794
1,191		 1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•1•1		 15 x 7
15 x 7
15 x 7
19 x 9
20 x 9
26 x 12
26 x 12
30 x 15		 17
17
17
22
22
29
29
32		 20
20
20
25
25
30
30
35		 0.25
0.25
0.28
0.30
0.30
0.40
0.40
0.40		 0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.60		 0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
 SD_-1.0-250
 SD_-1.0-500
 SD_-1.0-1000
 SD_-1.0-2500
 SD_-1.0-4000
 SD_-1.0-6000		 1.0
1.0
1.0
1.0
1.0
1.0		 250
500
1,000
2,500
4,000
6,000		 323
580
1,250
4,160
5,970
9,260		 354
210
290
550
820
970		 125
250
500
1,250
2,000
3,000		 1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•2R•1		 15 x 7
19 x 9
26 x 12
26 x 12
30 x 15
37 x 15		 17
22
29
29
32
42		 20
25
30
30
35
40		 0.355
0.45
0.50
0.50
0.45
0.50		 0.60
0.60
0.60
0.60
0.60
0.60		 0.80
0.80
0.80
0.80
0.80
0.80
 SD_-1.6-160
 SD_-1.6-315
 SD_-1.6-400
 SD_-1.6-500
 SD_-1.6-1000
 SD_-1.6-2500
 SD_-1.6-4000		 1.6
1.6
1.6
1.6
1.6
1.6
1.6
 160
315
400
500
1,000
2,500
4,000		 251
443
613
695
1,290
3,670
5,440		 127
289
266
115
195
380
450		 205
408
502
640
1,280
3,200
5,140		 1•1•1
1•1•1
1•1•1
1•1•1
1•2R•1
1•1•1
1•1•-		 15 x 7
19 x 8
19 x 9
26 x 12
30 x 15
37 x 15
44 x 18		 17
22
22
29
32
42
49		 20
25
25
30
35
40
-		 0.50
0.355
0.40
0.71
0.63
0.63
0.63		 0.80
0.80
0.80
0.80
0.63
0.80
0.80		 0.80
0.80
0.80
0.80
0.80
0.80
-
 SD_-2.0-63
 SD_-2.0-100
 SD_-2.0-315
 SD_-2.0-630
 SD_-2.0-1000
 SD_-2.0-1600
 SD_-2.0-2500		 2.0
2.0
2.0
2.0
2.0
2.0
2.0		 63
100
315
630
1,000
1,600
2,500		 81
115
422
885
1,387
2,420
3,240		 87
161
168
120
145
200
313		 126
200
650
1,260
2,000
3,200
5,000		 1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•1•1
1•1•-		 14 x 6
19 x 8
25 x 9
26 x 12
30 x 15
37 x 15
46 x 20		 17
22
29
29
42
42
49		 20
25
30
30
35
40
-		 0.40
0.355
0.80
0.75
0.75
0.80
0.85		 0.80
0.80
0.80
0.80
0.80
0.80
0.85		 0.80
0.80
0.80
0.80
0.80
0.80
-
 SD_-2.5-63
 SD_-2.5-100
 SD_-2.5-160
 SD_-2.5-200
 SD_-2.5-400
 SD_-2.5-1000		 2.5
2.5
2.5
2.5
2.5
2.5		 63
100
160
200
400
1,000		 99
129
241
275
790
1,521		 62
122
132
70
120
125		 197
312
489
630
1,250
3,125		 1•1•1
1•1•1
1•1•1
1•2R•1
1•2R•1
1•2R•1		 14 x 6
19 x 8
19 x 8
26 x 12
26 x 12
39 x 16		 17
22
22
29
29
42		 20
25
25
30
30
45		 0.50
0.40
0.45
0.75
0.71
0.85		 0.80
0.80
0.80
0.75
0.71
0.85		 0.80
0.80
0.80
0.80
0.80
-
 SD_-3.15-63
 SD_-3.15-100
 SD_-3.15-160
 SD_3.15-250
 SD_-3.15-630		 3.15
3.15
3.15
3.15
3.15		 63
100
160
250
630		 80
157
234
570
1,122		 62
60
86
85
110		 312
498
794
1,240
3,125		 1•1•1
1•1•1
1•1•1
1•2P•1
1•2R•1		 20 x 9
19 x 8
25 x 10
26 x 12
37 x 15		 22
22
29
29
42		 25
25
30
30
40		 0.50
0.60
0.60
0.56
0.90		 0.80
0.80
0.80
0.56
0.90		 0.80
0.80
0.80
0.80
0.90
 SD_-4.0-47
 SD_-4.0-100
 SD_-4.0-160
 SD_-4.0-250		 4.0
4.0
4.0
4.0		 47
100
160
250		 65
144
240
345		 55
68
40
50		 376
800
1,280
2,000		 1•1•1
1•1•1
1•1•1
1•1•1		 20 x 9
25 x 10
26 x 12
30 x 15		 22
29
29
42		 25
30
30
45		 0.50
0.60
0.90
0.95		 0.80
0.80
1.00
1.00		 0.80
0.80
0.90
1.00
 SD_-5.0-47
 SD_-5.0-63
 SD_-5.0-100
 SD_-5.0-250		 5.0
5.0
5.0
5.0		 47
63
100
250		 60
91
165
357		 44
43
27
40		 588
797
1,250
3,125		 1•1•1
1•1•1
2P•2P•2P
2R•1•1		 25 x 10
25 x 10
26 x 12
30 x 16		 29
29
29
42		 30
30
30
45		 0.60
0.67
0.75
1.18		 0.80
0.80
0.75
1.18		 0.80
0.80
0.75
1.18
 SD_-6.3-47
 SD_-6.3-63
 SD_-6.3-100
 SD_-6.3-200		 6.3
6.3
6.3
6.3		 47
63
100
200		 76
120
160
266		 44
17
28
44		 946
1,250
2,010
3,969		 1•1•1
1•1•1
1•1•1
2P•2P•2P		 26 x 11
26 x 12
29 x 13
38 x 17		 29
29
32
42		 30
30
35
40		 1.00
1.18
0.67
0.85		 1.00
1.18
0.80
0.85		 1.00
1.18
0.80
0.85
 SD_-8.0-47
 SD_-8.0-63		 8.0
8.0		 47
63		 63
95		 43
12		 1,507
2,016		 1•1•1
2P•2P•1		 29 x 13
30 x 15		 32
32		 35
35		 0.67
0.95		 0.80
0.95		 0.80
0.95

We can assist in the design of other inductance values and sizes including pre-designed cable lug models to 63 Amps.

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Notes:

  1. The µJoule rating (0.5 x LI²) is the ability of the inductor to store energy
  2. Schematic
    1 = one winding
    2P = two windings, Parallel Connection
    2R = two windings, Series Connection
  3. Inductance measured at 0.10Vrms @ 10kHz without DC current and 0.25Vrms @ 10kHz with DC current.
  4. On larger units and units wound with finer wire, additional mechanical mounting is recommended. See available Mounting Styles below.


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Ordering Key

Mounting Style


Mounting Style


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