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
Parallel Ratings Series Ratings
Part Number Rated OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5)OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5) Inductance+/-20% Amps Amps typ.μ-Sec+/-20%Amps Amps typ.μ-Sec (μH)(μH)Peak(μH)Peak
DRQ73-R33-R0.330.306 6.1914.40.0074 1.98 1.224 3.107.180.0296 3.96 DRQ73-1R0-R 1.000.992 5.257.970.0103 3.56 3.968 2.63 3.990.04117.12 DRQ73-1R5-R 1.50 1.482 4.64 6.520.0132 4.36 5.928 2.32 3.260.05278.72 DRQ73-2R2-R 2.20 2.070 4.11 5.520.0167 5.158.280 2.06 2.760.066910.3 DRQ73-3R3-R 3.30 3.540 3.31 4.220.0259 6.7314.16 1.66 2.110.103513.5 DRQ73-4R7-R 4.70 4.422 3.09 3.780.02977.5217.69 1.55 1.890.118815.0 DRQ73-6R8-R 6.80 6.480 2.55 3.120.04359.1125.92 1.28 1.560.174218.2 DRQ73-8R2-R8.208.930 2.19 2.660.059210.735.72 1.10 1.330.236821.4 DRQ73-100-R10.010.30 2.08 2.470.065611.541.20 1.04 1.240.262323.0 DRQ73-150-R15.015.01 1.83 2.050.084413.960.040.916 1.030.33927.8 DRQ73-220-R22.022.65 1.62 1.670.10717.090.600.8110.830.42934.0 DRQ73-330-R33.034.41 1.31 1.350.16621.0137.60.6530.680.66542.0 DRQ73-470-R47.048.62 1.08 1.140.24124.9194.50.5420.570.96549.8 DRQ73-680-R68.068.910.890.960.35829.7275.60.4440.48 1.4359.4 DRQ73-820-R82.080.370.860.890.38432.1321.50.4300.44 1.5464.2 DRQ73-101-R100101.40.730.790.52736.0405.60.3670.39 2.1172.0
1) Open Circuit Inductance Test Parameters:100kHz,0.25 V rms,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.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
Parallel Ratings Series Ratings
Part Number Rated OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5)OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5) Inductance+/-20% Amps Amps typ.μ-Sec+/-20%Amps Amps typ.μ-Sec (μH)(μH)Peak(μH)Peak
DRQ73-151-R150150.90.580.650.85144.0603.60.2890.32 3.4188.0 DRQ73-221-R220223.30.520.53 1.0553.5893.20.2600.27 4.20107 DRQ73-331-R330325.50.420.44 1.5964.513020.2110.22 6.36129 DRQ73-471-R470465.80.350.37 2.3677.218630.1730.189.44154 DRQ73-681-R680676.50.290.31 3.4793.127060.1430.1513.88186 DRQ73-821-R820821.70.270.28 3.9310332870.1340.1415.72206 DRQ73-102-R1000995.00.260.25 4.3411339800.1280.1317.36226 DRQ74-R33-R0.330.294 6.2018.40.0074 1.71 1.176 3.109.180.0295 3.42 DRQ74-1R0-R 1.000.952 5.3310.20.0100 3.08 3.808 2.66 5.100.0400 6.16 DRQ74-1R5-R 1.50 1.422 4.968.350.0115 3.76 5.688 2.48 4.170.04617.52 DRQ74-2R2-R 2.20 1.986 4.667.060.0130 4.457.944 2.33 3.530.05218.9 DRQ74-3R3-R 3.30 3.396 3.94 5.400.0183 5.8113.58 1.97 2.700.073211.6 DRQ74-4R7-R 4.70 5.182 3.34 4.370.02547.1820.73 1.67 2.190.10214.4 DRQ74-6R8-R 6.807.344 2.60 3.670.04188.5529.38 1.30 1.840.16717.1 DRQ74-8R2-R8.208.566 2.53 3.400.04419.2334.26 1.27 1.700.17718.5 DRQ74-100-R10.09.882 2.41 3.170.04899.9239.53 1.20 1.580.19619.8 DRQ74-150-R15.016.09 2.11 2.480.063712.764.36 1.05 1.240.25525.4 DRQ74-220-R22.021.73 1.75 2.130.092514.786.920.874 1.070.37129.4 DRQ74-330-R33.033.01 1.41 1.730.14318.1132.00.7020.870.57436.2 DRQ74-470-R47.049.64 1.15 1.410.21622.2198.60.5730.710.86544.4 DRQ74-680-R68.069.67 1.03 1.190.26526.3278.70.5170.60 1.0652.6 DRQ74-820-R82.080.950.91 1.110.34528.4323.80.4530.55 1.3856.8 DRQ74-101-R100101.60.860.990.38331.8406.40.4300.49 1.5363.6 DRQ74-151-R150150.00.690.810.59138.6600.00.3460.41 2.3777.2 DRQ74-221-R220227.00.560.660.90747.5908.00.2790.33 3.6395 DRQ74-331-R330335.60.450.54 1.4157.813420.2240.27 5.66116 DRQ74-471-R470465.30.400.46 1.7468.118610.2020.23 6.97136 DRQ74-681-R680671.20.330.38 2.5881.726850.1660.1910.3163 DRQ74-821-R820812.70.310.35 2.9389.932510.1560.1711.7180 DRQ74-102-R100010090.270.31 3.8910040360.1350.1615.6200 DRQ125-R47-R0.470.45617.633.00.0018 3.17 1.8248.8016.50.0078 6.34 DRQ125-1R0-R 1.000.89415.023.60.0024 4.43 3.5767.5111.80.00968.86 DRQ125-1R5-R 1.50 1.47813.818.30.0029 5.70 5.912 6.899.150.011411.40 DRQ125-2R2-R 2.20 2.20810.915.00.0045 6.978.832 5.467.500.018213.9 DRQ125-3R3-R 3.30 3.0849.2612.70.00638.2312.34 4.63 6.350.025316.5 DRQ125-4R7-R 4.70 5.2747.189.710.010510.821.10 3.59 4.860.042021.6 DRQ125-6R8-R 6.80 6.588 6.648.680.012312.026.35 3.32 4.340.049224.0 DRQ125-8R2-R8.208.048 5.547.860.017613.332.19 2.77 3.930.070526.6 DRQ125-100-R10.09.654 5.357.170.018914.638.62 2.67 3.590.075729.2 DRQ125-150-R15.015.35 4.27 5.690.029818.461.40 2.13 2.850.12036.8 DRQ125-220-R22.022.36 3.70 4.710.039622.289.44 1.84 2.360.15944.4 DRQ125-330-R33.033.74 3.28 3.840.050527.2135.0 1.64 1.920.20354.4 DRQ125-470-R47.047.47 2.71 3.240.074032.3189.9 1.35 1.620.29764.6 DRQ125-680-R68.067.91 2.22 2.700.10138.6271.6 1.11 1.350.44077.2
1) Open Circuit Inductance Test Parameters:100kHz,0.25 V rms,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.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
Parallel Ratings Series Ratings
Part Number Rated OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5)OCL(1)I rms(2)I sat(3)DCR ?(4)Volt(5) Inductance+/-20% Amps Amps typ.μ-Sec+/-20%Amps Amps typ.μ-Sec (μH)(μH)Peak(μH)Peak
DRQ125-820-R82.086.89 2.05 2.390.12843.7347.6 1.03 1.200.51587.4 DRQ125-101-R100102.7 1.78 2.200.17047.5410.80.892 1.100.68295.0 DRQ125-151-R150151.1 1.48 1.810.24857.6604.40.7390.9050.991115.2 DRQ125-221-R220216.8 1.19 1.510.38469.0867.20.5940.755 1.54138 DRQ125-331-R330332.6 1.06 1.220.48285.513300.5300.610 1.93171 DRQ125-471-R470473.10.87 1.020.71810218920.4340.510 2.87204 DRQ125-681-R680679.80.700.85 1.1012227190.3500.425 4.42244 DRQ125-821-R820828.00.600.77 1.4913533120.3010.385 5.96270 DRQ125-102-R100010080.570.70 1.6914940320.2830.350 6.76298 DRQ127-R47-R0.470.41917.956.00.00195 3.50 1.6768.94280.00787.00 DRQ127-1R0-R 1.000.82115.540.00.00261 4.90 3.2847.74200.01049.80 DRQ127-1R5-R 1.50 1.35713.531.10.00341 6.30 5.428 6.7715.60.013712.60 DRQ127-2R2-R 2.20 2.02712.525.50.003737.708.108 6.2312.70.016115.4 DRQ127-3R3-R 3.30 2.83110.421.50.005679.1011.32 5.2310.80.022918.2 DRQ127-4R7-R 4.70 4.8418.2516.50.0091711.919.36 4.138.240.036723.8 DRQ127-6R8-R 6.807.3877.3413.30.011614.729.55 3.67 6.670.046529.4 DRQ127-8R2-R8.208.861 6.3212.20.015716.135.44 3.16 6.090.062732.2 DRQ127-100-R10.010.47 6.0411.20.017217.541.88 3.02 5.600.068635.0 DRQ127-150-R15.014.09 5.039.660.024720.356.36 2.51 4.830.099040.6 DRQ127-220-R22.022.93 4.007.570.039125.991.72 2.00 3.780.15751.8 DRQ127-330-R33.033.92 3.23 6.220.060031.5135.7 1.61 3.110.24163.0 DRQ127-470-R47.047.05 2.95 5.280.071937.1188.2 1.47 2.640.28874.2 DRQ127-680-R68.066.48 2.44 4.440.10544.1265.9 1.22 2.220.42188.2 DRQ127-820-R82.079.75 2.09 4.060.14348.3319.0 1.04 2.030.57396.6 DRQ127-101-R10099.31 1.96 3.640.16353.9397.20.980 1.820.653107.8 DRQ127-151-R150144.9 1.59 3.010.24765.1579.60.796 1.510.989130.2 DRQ127-221-R220221.5 1.29 2.430.37680.5886.00.645 1.22 1.50161 DRQ127-331-R330323.6 1.04 2.010.57497.312940.522 1.01 2.30195 DRQ127-471-R470467.10.85 1.680.86111718680.4270.838 3.44234 DRQ127-681-R680676.70.76 1.39 1.0814127070.3800.697 4.32282 DRQ127-821-R820818.10.65 1.27 1.4715532720.3250.633 5.88310 DRQ127-102-R100010050.61 1.14 1.6617240200.3070.571 6.64344
1) Open Circuit Inductance Test Parameters:100kHz,0.25 V rms,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.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
Side View
Top View
Recommended Pad Layout
Dimensions - mm
DRQ73 Series
Side View
Recommended Pad Layout
4
2
DRQ74 Series
Dimensions in millimeters.
### = Inductance value per family chart
Dot indicates pin #1
12Recommended Pad Layout
Side View
Side View
12Recommended Pad Layout
4
2
Dimensions - mm DRQ125 Series
DRQ127 Series
Dimensions in millimeters.
### = Inductance value per family chart wwllyy = (date code) R = revision level
Dot indicates pin #1
SECTION A-A
DRQ74 Series
Supplied in tape and reel packaging,1100 parts per reel,13" diameter reel.
SECTION A-A
DRQ125 Series
Supplied in tape and reel packaging,600 parts per reel,13" diameter reel.
SECTION A-A
DRQ127 Series
Supplied in tape and reel packaging,350 parts per reel,13" diameter reel.
Packaging Information DRQ73 Series
Supplied in tape and reel packaging,1350 parts per reel,13" diameter reel.
Dimensions are in millimeters.
?
?
Direction of Feed
?
Direction of Feed
?
Ao=7.90mm Bo=7.90mm Ko=3.80mm
Ao=7.90mm Bo=7.90mm Ko=4.70mm
Ao=13.00mm Bo=13.00mm Ko=6.30mm
Ao=13.00mm Bo=13.00mm Ko=8.30mm
ACTUAL SIZE DRQ73
ACTUAL SIZE DRQ74
ACTUAL SIZE DRQ125
ACTUAL SIZE DRQ127
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann reserves the right,without notice,to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update,without notice,any technical information contained in this bulletin. Once a product has been selected,it should be tested by the user in all possible applications.
Life Support Policy:Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life,and whose failure to perform,when properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in significant injury to the user.
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Europe
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Asia Pacific
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#06-01 Pacific Tech Centre Singapore 159303Tel: +65 278 6151Fax: +65 270 4160
10203040506070
80901000
20
40
60
80
100
120
140
160
% of I sat O C L (%)
OCL vs I sat
DRQ73
% of I sat
O C L (%)
OCL vs I sat DRQ74
10203040506070
80901000
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
% of I sat
O C L (%)
OCL vs I sat
DRQ125
% of I sat
O C L (%)
OCL vs I sat
DRQ127
Inductance Characteristics
Core Loss