DRQ73-R33-R Datasheet, PDF (1/7 Pages) Cooper Bussmann, Inc. – Dual Winding, Shielded Inductors/Transformer

DRQ Series
Dual Winding, Shielded Inductors/Transformer
Description
• 125°C maximum total operating temperature
• Dual winding inductors that can be used as either
a single inductor, or in coupled inductor/transformer applications
(1:1 turns ratio)
• Four sizes of shielded drum core inductors
• Windings can be connected in series or parallel, offering a broad
range of inductance and current ratings
• Peak current ratings from 0.13 amps to 56 amps
• RMS current ratings from 0.128 amps to 17.9 amps
• Inductance ratings from 0.33µH to 4.02mH
• Surface Mount
• 200Vac Isolation between windings
• Ferrite core material
Applications
• As a transformer: SEPIC, flyback
• As an inductor: buck, boost, coupled inductor
• DC-DC converters
• VRM inductor for CPU and DDR power supplies
• Input and output filter chokes
Environmental Data
• Storage temperature: -40°C to +125°C
• Operating temperature: -40°C to +125°C (range is application
specific).
• Solder reflow temperature: 260°C max. for 10 seconds max.
Packaging
• Supplied in tape and reel packaging, 1350 (DRQ73),
1100 (DRQ74), 600 (DRQ125), and 350 (DRQ127) per reel
Part Number
DRQ73-R33-R
DRQ73-1R0-R
DRQ73-1R5-R
DRQ73-2R2-R
DRQ73-3R3-R
DRQ73-4R7-R
DRQ73-6R8-R
DRQ73-8R2-R
DRQ73-100-R
DRQ73-150-R
DRQ73-220-R
DRQ73-330-R
DRQ73-470-R
DRQ73-680-R
DRQ73-820-R
DRQ73-101-R
Rated
Inductance
(µH)
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
OCL⁽¹⁾
+/-20%
(µH)
0.306
0.992
1.482
2.070
3.540
4.422
6.480
8.930
10.30
15.01
22.65
34.41
48.62
68.91
80.37
101.4
Parallel Ratings
Irms⁽²⁾
Amps
Isat⁽³⁾
Amps
Peak
DCR Ω ⁽⁴⁾
typ.
6.19
14.4
0.0074
5.25
7.97
0.0103
4.64
6.52
0.0132
4.11
5.52
0.0167
3.31
4.22
0.0259
3.09
3.78
0.0297
2.55
3.12
0.0435
2.19
2.66
0.0592
2.08
2.47
0.0656
1.83
2.05
0.0844
1.62
1.67
0.107
1.31
1.35
0.166
1.08
1.14
0.241
0.89
0.96
0.358
0.86
0.89
0.384
0.73
0.79
0.527
1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc
Parallel: (1,2 -4,3) Series: (1-4) tie (2-3)
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
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.
Volt⁽⁵⁾
µ-Sec
1.98
3.56
4.36
5.15
6.73
7.52
9.11
10.7
11.5
13.9
17.0
21.0
24.9
29.7
32.1
36.0
OCL⁽¹⁾
+/-20%
(µH)
1.224
3.968
5.928
8.280
14.16
17.69
25.92
35.72
41.20
60.04
90.60
137.6
194.5
275.6
321.5
405.6
Series Ratings
Irms⁽²⁾
Amps
Isat⁽³⁾
Amps
Peak
DCR Ω ⁽⁴⁾
typ.
3.10
7.18
0.0296
2.63
3.99
0.0411
2.32
3.26
0.0527
2.06
2.76
0.0669
1.66
2.11
0.1035
1.55
1.89
0.1188
1.28
1.56
0.1742
1.10
1.33
0.2368
1.04
1.24
0.2623
0.916
1.03
0.339
0.811
0.83
0.429
0.653
0.68
0.665
0.542
0.57
0.965
0.444
0.48
1.43
0.430
0.44
1.54
0.367
0.39
2.11
6) Turns Ratio (1:3):(2-4) 1:1
7) Part number definition: DRQxxx-yyy-R
DRQxxx = product code and size,
-yyy = inductance value in µH,
R = decimal point. If no R is present, third character = # of zeros
-R suffix = RoHS compliant
Volt⁽⁵⁾
µ-Sec
3.96
7.12
8.72
10.3
13.5
15.0
18.2
21.4
23.0
27.8
34.0
42.0
49.8
59.4
64.2
72.0
1207 BU-SB07326
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Data Sheet 4311