DJ Series
Low Cost Linear Storage Chokes

DJ Series Storage Chokes offer high storage capacity in a compact, low cost design. Used primarily in switched-mode power supplies where low losses are essential at high pulse frequencies.

Features:

Low cost design
High storage capacity (to 5000 µJoules) in compact size
Low losses at high pulse frequencies
Five designs cover rated output currents between 1.5 A and 29 A.
Operating frequency to 200 kHz
Small mounting area due to vertical design
Competitive pricing due to high volume production
Manufactured in ISO-9000 approved facility.

Electrical Specifications at 25 °C
Part Number Connection Idc Amps Ldc (µH)
+25%/-10%
@ rated current Lo (µH)
± 10%
no load DCR
(mOhms)
max Min. Energy
Storage
(µJoule) Wire
Ø
mm Schematic Weight
per
Piece

DJ-500 Series
Parallel 1.5
3.0 384
96 620
155 188
47 431
431 0.56
0.56 1
1 18
18

DJ-501 Series
Parallel 2.0
4.0 232
58 376
94 116
29 467
467 0.63
0.63 1
1 18
18

DJ-502 Series
Parallel 2.5
5.0 144
36 232
58 72
18 446
446 0.71
0.71 1
1 18
18

DJ-503 Series
Parallel 3.0
6.0 100
25 164
41 48
12 453
453 0.80
0.80 1
1 18
18

DJ-504 Series
Parallel 4.6
9.2 44
11 72
18 20
5 473
473 1.00
1.00 1
1 19
19

DJ-1500 Series
Parallel 2.0
4.0 752
188 1428
357 180
45 1501
1501 0.80
0.80 1
1 56
56

DJ-1501 Series
Parallel 2.5
5.0 468
117 892
223 124
31 1465
1465 0.85
0.85 1
1 54
54

DJ-1502 Series
Parallel 3.0
6.0 328
82 624
156 76
19 1477
1477 1.00
1.00 1
1 57
57

DJ-1503 Series
Parallel 4.0
8.0 188
47 356
89 44
11 1501
1501 1.12
1.12 1
1 56
56

DJ-1504 Series
Parallel 6.0
12.0 80
20 148
37 20
5 1406
1406 1.00
1.00 2
2 56
56

DJ-1505 Series
Parallel 7.5
15.0 48
12 96
24 12
3 1406
1406 1.12
1.12 2
2 56
56

DJ-2500 Series
Parallel 2.8
5.6 628
157 1292
323 176
44 2458
2458 0.80
0.80 1
1 63
63

DJ-2501 Series
Parallel 3.5
7.0 404
101 832
208 112
28 2482
2482 0.90
0.90 1
1 63
63

DJ-2502 Series
Parallel 4.5
9.0 248
62 508
127 72
18 2499
2499 1.00
1.00 1
1 63
63

DJ-2503 Series
Parallel 6.0
12.0 140
35 284
71 40
10 2499
2499 1.12
1.12 1
1 63
63

DJ-2504 Series
Parallel 8.5
17.0 68
17 144
36 20
5 2517
2517 1.00
1.00 2
2 63
63

DJ-2505 Series
Parallel 10.5
21.0 48
12 96
24 12
3 2604
2604 1.12
1.12 2
2 64
64

Notes:

L(µH): Inductance is tested at 10 kHz and 10 mV
The µJoule rating (½LI)² is the ability of the inductor to store energy.
See dimension page for dimensions and schematics.
DJA Series
High Capacity Linear Storage Chokes

Storage capacity ½LI² is approximately equal to 3500 & 5000 µWs (µ Joule)

The DJA Series utilizes Fe-based amorphous alloy cores which provide high flux density and low core loss. These storage chokes allow you to optimize your designs by giving a highly stable inductance over a wide DC bias current range at operating frequencies to 500 kHz.

Electrical Specifications at 25 °C
Part Number Connection Idc Amps Ldc (µH)
+25%/-10%
@ rated current Lo (µH)
± 10%
no load DCR
(mOhms)
max Min. Energy
Storage
(µJoule) Wire
Ø
mm Schematic Weight
per
Piece

DJA-3500 Series
Parallel 3.3
6.6 624
156 780
195 128
32 3392
3392 0.80
0.80 1
1 33
33

DJA-3501 Series
Parallel 4.0
8.0 420
105 524
131 92
23 3355
3355 0.85
0.85 1
1 33
33

DJA-3502 Series
Parallel 5.3
10.6 236
59 296
74 48
12 3314
3314 1.00
1.00 1
1 33
33

DJA-3503 Series
Parallel 6.7
13.4 148
37 184
46 32
8 3319
3319 1.12
1.12 1
1 33
33

DJA-3504 Series
Parallel 9.8
19.6 68
17 88
22 16
4 3324
3324 0.95
0.95 2
2 33
33

DJA-3505 Series
Parallel 11.6
23.2 50
12.5 62
15.5 12
3 3335
3335 1.06
1.06 2
2 33
33

DJA-5000 Series
Parallel 4.0
8.0 636
159 792
198 124
31 5079
5079 0.85
0.85 1
1 44
44

DJA-5001 Series
Parallel 5.0
10.0 408
102 508
127 80
20 5079
5079 0.95
0.95 1
1 44
44

DJA-5002 Series
Parallel 6.4
12.8 248
62 312
78 44
11 5079
5079 1.12
1.12 1
1 44
44

DJA-5003 Series
Parallel 8.4
16.8 144
36 180
45 26
6.5 5054
5054 0.90
0.90 2
2 44
44

DJA-5004 Series
Parallel 12.3
24.6 68
17 84
21 12
3 5073
5073 1.06
1.06 2
2 44
44

DJA-5005 Series
Parallel 14.5
29.0 48
12 60
15 10
2.5 5047
5047 1.12
1.12 2
2 44
44

Dimensions:Millimeters
Tolerance: ±0.25 unless specified otherwise.

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Ultimo aggiornamento il: 30 Gennaio, 2010

	Low cost design
	High storage capacity (to 5000 µJoules) in compact size
	Low losses at high pulse frequencies
	Five designs cover rated output currents between 1.5 A and 29 A.
	Operating frequency to 200 kHz
	Small mounting area due to vertical design
	Competitive pricing due to high volume production
	Manufactured in ISO-9000 approved facility.

DJ Series Low Cost Linear Storage Chokes

DJA Series High Capacity Linear Storage Chokes

DJ Series
Low Cost Linear Storage Chokes

DJA Series
High Capacity Linear Storage Chokes