Parallel Ratings
Series Ratings
(1)
(2)
(3)
I
(5)
(1)
(2)
(3)
I
(5)
ΩΩ (4)
ΩΩ (4)
Part Number
Rated
OCL
I
DCR
typ.
Volt
OCL
I
DCR
typ.
Volt
rms
sat
rms
sat
Inductance +/-20%
Amps
Amps
Peak
µ-Sec
+/-20%
(µH)
Amps
Amps
Peak
µ-Sec
(µH)
150
220
330
470
(µH)
DRQ73-151-R
DRQ73-221-R
DRQ73-331-R
DRQ73-471-R
DRQ73-681-R
DRQ73-821-R
DRQ73-102-R
DRQ74-R33-R
DRQ74-1R0-R
DRQ74-1R5-R
DRQ74-2R2-R
DRQ74-3R3-R
DRQ74-4R7-R
DRQ74-6R8-R
DRQ74-8R2-R
DRQ74-100-R
DRQ74-150-R
DRQ74-220-R
DRQ74-330-R
DRQ74-470-R
DRQ74-680-R
DRQ74-820-R
DRQ74-101-R
DRQ74-151-R
DRQ74-221-R
DRQ74-331-R
DRQ74-471-R
DRQ74-681-R
DRQ74-821-R
DRQ74-102-R
DRQ125-R47-R
DRQ125-1R0-R
DRQ125-1R5-R
DRQ125-2R2-R
DRQ125-3R3-R
DRQ125-4R7-R
DRQ125-6R8-R
DRQ125-8R2-R
DRQ125-100-R
DRQ125-150-R
DRQ125-220-R
DRQ125-330-R
DRQ125-470-R
DRQ125-680-R
150.9
223.3
325.5
465.8
676.5
821.7
995.0
0.294
0.952
1.422
1.986
3.396
5.182
7.344
8.566
9.882
16.09
21.73
33.01
49.64
69.67
80.95
101.6
150.0
227.0
335.6
465.3
671.2
812.7
1009
0.456
0.894
1.478
2.208
3.084
5.274
6.588
8.048
9.654
15.35
22.36
33.74
47.47
67.91
0.58
0.52
0.42
0.35
0.29
0.27
0.26
6.20
5.33
4.96
4.66
3.94
3.34
2.60
2.53
2.41
2.11
1.75
1.41
1.15
1.03
0.91
0.86
0.69
0.56
0.45
0.40
0.33
0.31
0.27
17.6
15.0
13.8
10.9
9.26
7.18
6.64
5.54
5.35
4.27
3.70
3.28
2.71
2.22
0.65
0.53
0.44
0.37
0.31
0.28
0.25
18.4
10.2
8.35
7.06
5.40
4.37
3.67
3.40
3.17
2.48
2.13
1.73
1.41
1.19
1.11
0.99
0.81
0.66
0.54
0.46
0.38
0.35
0.31
33.0
23.6
18.3
15.0
12.7
9.71
8.68
7.86
7.17
5.69
4.71
3.84
3.24
2.70
0.851
1.05
1.59
2.36
3.47
44.0
53.5
64.5
77.2
93.1
103
603.6
893.2
1302
1863
2706
3287
3980
1.176
3.808
5.688
7.944
13.58
20.73
29.38
34.26
39.53
64.36
86.92
132.0
198.6
278.7
323.8
406.4
600.0
908.0
1342
1861
2685
3251
4036
1.824
3.576
5.912
8.832
12.34
21.10
26.35
32.19
38.62
61.40
89.44
135.0
189.9
271.6
0.289
0.260
0.211
0.173
0.143
0.134
0.128
3.10
2.66
2.48
2.33
1.97
0.32
0.27
0.22
0.18
0.15
0.14
0.13
9.18
5.10
4.17
3.53
2.70
2.19
1.84
1.70
1.58
1.24
1.07
0.87
0.71
0.60
0.55
0.49
0.41
0.33
0.27
0.23
0.19
0.17
0.16
16.5
11.8
9.15
7.50
6.35
4.86
4.34
3.93
3.59
2.85
2.36
1.92
1.62
1.35
3.41
4.20
6.36
88.0
107
129
154
186
206
226
3.42
6.16
7.52
8.9
11.6
14.4
17.1
18.5
19.8
25.4
29.4
36.2
44.4
52.6
56.8
63.6
77.2
95
9.44
680
820
13.88
15.72
17.36
0.0295
0.0400
0.0461
0.0521
0.0732
0.102
0.167
0.177
0.196
0.255
0.371
0.574
0.865
1.06
1.38
1.53
2.37
3.63
5.66
6.97
10.3
11.7
3.93
4.34
1000
0.33
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
113
0.0074
0.0100
0.0115
0.0130
0.0183
0.0254
0.0418
0.0441
0.0489
0.0637
0.0925
0.143
0.216
0.265
0.345
0.383
0.591
0.907
1.41
1.71
3.08
3.76
4.45
5.81
7.18
8.55
9.23
9.92
12.7
14.7
18.1
22.2
26.3
28.4
31.8
38.6
47.5
57.8
68.1
81.7
89.9
100
3.17
4.43
5.70
6.97
8.23
10.8
12.0
13.3
14.6
18.4
22.2
27.2
32.3
38.6
1.67
1.30
1.27
1.20
1.05
0.874
0.702
0.573
0.517
0.453
0.430
0.346
0.279
0.224
0.202
0.166
0.156
0.135
8.80
7.51
6.89
5.46
4.63
3.59
3.32
2.77
2.67
150
220
330
470
680
820
116
136
163
180
1.74
2.58
2.93
3.89
1000
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
15.6
200
0.0018
0.0024
0.0029
0.0045
0.0063
0.0105
0.0123
0.0176
0.0189
0.0298
0.0396
0.0505
0.0740
0.101
0.0078
0.0096
0.0114
0.0182
0.0253
0.0420
0.0492
0.0705
0.0757
0.120
0.159
0.203
0.297
0.440
6.34
8.86
11.40
13.9
16.5
21.6
24.0
26.6
29.2
36.8
44.4
54.4
64.6
77.2
2.13
1.84
1.64
1.35
1.11
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 V , 0.0 Adc
rms
6) Turns Ratio (1:3):(2-4) 1:1
Parallel: (1,2 -4,3) Series: (1-4) tie (2-3)
7) Part number definition: DRQxxx-yyy-R
DRQxxx = product code and size,
-yyy = inductance value in µH,
2) RMS current for an approximate ∆T of 40°C without core loss. It is recommended that the
temperature of the part not exceed 125°C.
3) Peak current for approximately 30% roll-off at 20°C
4) DCR limits @ 20°C
R = decimal point. If no R is present, third character = # of zeros
-R suffix = RoHS compliant
5) Applied Volt-Time product (V-µS) across the inductor. This value represents the applied V-µS
at 100KHz necessary to generate a core loss equal to 10% of the total losses for a 40°C
temperature rise.
1207 BU-SB07326
Page 2 of 7
Data Sheet 4311
COOPER [ COOPER BUSSMANN, INC. ]
