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drq series dual winding, shielded inductors/transformer p p a a r r a a l l l l e e l l r r a a t t i i n n g g s s s s e e r r i i e e s s r r a a t t i i n n g g s s p p a a r r t t n n u u m m b b e e r r r r a a t t e e d d o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) i i n n d d u u c c t t a a n n c c e e + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c ( ( h h ) ) ( ( h h ) ) p p e e a a k k ( ( h h ) ) p p e e a a k k d d r r q q 7 7 3 3 - - r r 3 3 3 3 - - r r 0.33 0.306 6.19 14.4 0.0074 1.98 1.224 3.10 7.18 0.0296 3.96 d d r r q q 7 7 3 3 - - 1 1 r r 0 0 - - r r 1.00 0.992 5.25 7.97 0.0103 3.56 3.968 2.63 3.99 0.0411 7.12 d d r r q q 7 7 3 3 - - 1 1 r r 5 5 - - r r 1.50 1.482 4.64 6.52 0.0132 4.36 5.928 2.32 3.26 0.0527 8.72 d d r r q q 7 7 3 3 - - 2 2 r r 2 2 - - r r 2.20 2.070 4.11 5.52 0.0167 5.15 8.280 2.06 2.76 0.0669 10.3 d d r r q q 7 7 3 3 - - 3 3 r r 3 3 - - r r 3.30 3.540 3.31 4.22 0.0259 6.73 14.16 1.66 2.11 0.1035 13.5 d d r r q q 7 7 3 3 - - 4 4 r r 7 7 - - r r 4.70 4.422 3.09 3.78 0.0297 7.52 17.69 1.55 1.89 0.1188 15.0 d d r r q q 7 7 3 3 - - 6 6 r r 8 8 - - r r 6.80 6.480 2.55 3.12 0.0435 9.11 25.92 1.28 1.56 0.1742 18.2 d d r r q q 7 7 3 3 - - 8 8 r r 2 2 - - r r 8.20 8.930 2.19 2.66 0.0592 10.7 35.72 1.10 1.33 0.2368 21.4 d d r r q q 7 7 3 3 - - 1 1 0 0 0 0 - - r r 10.0 10.30 2.08 2.47 0.0656 11.5 41.20 1.04 1.24 0.2623 23.0 d d r r q q 7 7 3 3 - - 1 1 5 5 0 0 - - r r 15.0 15.01 1.83 2.05 0.0844 13.9 60.04 0.916 1.03 0.339 27.8 d d r r q q 7 7 3 3 - - 2 2 2 2 0 0 - - r r 22.0 22.65 1.62 1.67 0.107 17.0 90.60 0.811 0.83 0.429 34.0 d d r r q q 7 7 3 3 - - 3 3 3 3 0 0 - - r r 33.0 34.41 1.31 1.35 0.166 21.0 137.6 0.653 0.68 0.665 42.0 d d r r q q 7 7 3 3 - - 4 4 7 7 0 0 - - r r 47.0 48.62 1.08 1.14 0.241 24.9 194.5 0.542 0.57 0.965 49.8 d d r r q q 7 7 3 3 - - 6 6 8 8 0 0 - - r r 68.0 68.91 0.89 0.96 0.358 29.7 275.6 0.444 0.48 1.43 59.4 d d r r q q 7 7 3 3 - - 8 8 2 2 0 0 - - r r 82.0 80.37 0.86 0.89 0.384 32.1 321.5 0.430 0.44 1.54 64.2 d d r r q q 7 7 3 3 - - 1 1 0 0 1 1 - - r r 100 101.4 0.73 0.79 0.527 36.0 405.6 0.367 0.39 2.11 72.0 d d r r q q 7 7 3 3 - - 1 1 5 5 1 1 - - r r 150 150.9 0.58 0.65 0.851 44.0 603.6 0.289 0.32 3.41 88.0 d d r r q q 7 7 3 3 - - 2 2 2 2 1 1 - - r r 220 223.3 0.52 0.53 1.05 53.5 893.2 0.260 0.27 4.20 107 d d r r q q 7 7 3 3 - - 3 3 3 3 1 1 - - r r 330 325.5 0.42 0.44 1.59 64.5 1302 0.211 0.22 6.36 129 d d r r q q 7 7 3 3 - - 4 4 7 7 1 1 - - r r 470 465.8 0.35 0.37 2.36 77.2 1863 0.173 0.18 9.44 154 d d r r q q 7 7 3 3 - - 6 6 8 8 1 1 - - r r 680 676.5 0.29 0.31 3.47 93.1 2706 0.143 0.15 13.88 186 d d r r q q 7 7 3 3 - - 8 8 2 2 1 1 - - r r 820 821.7 0.27 0.28 3.93 103 3287 0.134 0.14 15.72 206 d d r r q q 7 7 3 3 - - 1 1 0 0 2 2 - - r r 1000 995.0 0.26 0.25 4.34 113 3980 0.128 0.13 17.36 226 1) open circuit inductance test parameters: 100khz, 0.25 vrms, 0.0 adc p ar allel: (1,2 - 4,2) series: (1 - 4) tie (2 - 3) 2) rms current for an approximate ? t of 40 without core loss. it is recommended that the temperature of the part not exceed 125. 3) p eak current f or appro ximately 30% roll-off at 20 4) dcr limits @ 20 5) applied v olt-time product (v-?) across the inductor. this value represents the applied v-? at 100khz necessary to generate a core loss equal to 10% of the total losses for a 40c temperature rise. 6) t ur ns ratio (1-2):(3-4) 1:1 d escription ?125 maximum total temperature operation ?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 0.33h to 4.02mh ?surface mount ?200 vac 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 to +125? ?operating temperature: -40 to +125c (range is application specific). ?solder reflow temperature: 260 max. for 10 seconds max. packaging ?supplied in tape and reel packaging, 1350 (drq73), 1100 (drq74), 600 (drq125), and 350 (drq127) per reel r ohs 2002/95/ec
drq series dual winding, shielded inductors/transformer p p a a r r a a l l l l e e l l r r a a t t i i n n g g s s s s e e r r i i e e s s r r a a t t i i n n g g s s p p a a r r t t n n u u m m b b e e r r r r a a t t e e d d o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) i i n n d d u u c c t t a a n n c c e e + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c ( ( h h ) ) ( ( h h ) ) p p e e a a k k ( ( h h ) ) p p e e a a k k d d r r q q 7 7 4 4 - - r r 3 3 3 3 - - r r 0.33 0.294 6.20 18.4 0.0074 1.71 1.176 3.10 9.18 0.0295 3.42 d d r r q q 7 7 4 4 - - 1 1 r r 0 0 - - r r 1.00 0.952 5.33 10.2 0.0100 3.08 3.808 2.66 5.10 0.0400 6.16 d d r r q q 7 7 4 4 - - 1 1 r r 5 5 - - r r 1.50 1.422 4.96 8.35 0.0115 3.76 5.688 2.48 4.17 0.0461 7.52 d d r r q q 7 7 4 4 - - 2 2 r r 2 2 - - r r 2.20 1.986 4.66 7.06 0.0130 4.45 7.944 2.33 3.53 0.0521 8.9 d d r r q q 7 7 4 4 - - 3 3 r r 3 3 - - r r 3 .30 3.396 3.94 5.40 0.0183 5.81 13.58 1.97 2.70 0.0732 11.6 d d r r q q 7 7 4 4 - - 4 4 r r 7 7 - - r r 4.70 5.182 3.34 4.37 0.0254 7.18 20.73 1.67 2.19 0.102 14.4 d d r r q q 7 7 4 4 - - 6 6 r r 8 8 - - r r 6.80 7.344 2.60 3.67 0.0418 8.55 29.38 1.30 1.84 0.167 17.1 d d r r q q 7 7 4 4 - - 8 8 r r 2 2 - - r r 8 .20 8.566 2.53 3.40 0.0441 9.23 34.26 1.27 1.70 0.177 18.5 d d r r q q 7 7 4 4 - - 1 1 0 0 0 0 - - r r 10.0 9.882 2.41 3.17 0.0489 9.92 39.53 1.20 1.58 0.196 19.8 d d r r q q 7 7 4 4 - - 1 1 5 5 0 0 - - r r 15.0 16.09 2.11 2.48 0.0637 12.7 64.36 1.05 1.24 0.255 25.4 d d r r q q 7 7 4 4 - - 2 2 2 2 0 0 - - r r 22.0 21.73 1.75 2.13 0.0925 14.7 86.92 0.874 1.07 0.371 29.4 d d r r q q 7 7 4 4 - - 3 3 3 3 0 0 - - r r 33.0 33.01 1.41 1.73 0.143 18.1 132.0 0.702 0.87 0.574 36.2 d d r r q q 7 7 4 4 - - 4 4 7 7 0 0 - - r r 47.0 49.64 1.15 1.41 0.216 22.2 198.6 0.573 0.71 0.865 44.4 d d r r q q 7 7 4 4 - - 6 6 8 8 0 0 - - r r 68.0 69.67 1.03 1.19 0.265 26.3 278.7 0.517 0.60 1.06 52.6 d d r r q q 7 7 4 4 - - 8 8 2 2 0 0 - - r r 82.0 80.95 0.91 1.11 0.345 28.4 323.8 0.453 0.55 1.38 56.8 d d r r q q 7 7 4 4 - - 1 1 0 0 1 1 - - r r 100 101.6 0.86 0.99 0.383 31.8 406.4 0.430 0.49 1.53 63.6 d d r r q q 7 7 4 4 - - 1 1 5 5 1 1 - - r r 150 150.0 0.69 0.81 0.591 38.6 600.0 0.346 0.41 2.37 77.2 d d r r q q 7 7 4 4 - - 2 2 2 2 1 1 - - r r 220 227.0 0.56 0.66 0.907 47.5 908.0 0.279 0.33 3.63 95 d d r r q q 7 7 4 4 - - 3 3 3 3 1 1 - - r r 330 335.6 0.45 0.54 1.41 57.8 1342 0.224 0.27 5.66 116 d d r r q q 7 7 4 4 - - 4 4 7 7 1 1 - - r r 470 465.3 0.40 0.46 1.74 68.1 1861 0.202 0.23 6.97 136 d d r r q q 7 7 4 4 - - 6 6 8 8 1 1 - - r r 680 671.2 0.33 0.38 2.58 81.7 2685 0.166 0.19 10.3 163 d d r r q q 7 7 4 4 - - 8 8 2 2 1 1 - - r r 820 812.7 0.31 0.35 2.93 89.9 3251 0.156 0.17 11.7 180 d d r r q q 7 7 4 4 - - 1 1 0 0 2 2 - - r r 1000 1009 0.27 0.31 3.89 100 4036 0.135 0.16 15.6 200 d d r r q q 1 1 2 2 5 5 - - r r 4 4 7 7 - - r r 0.47 0.456 17.6 33.0 0.0018 3.17 1.824 8.80 16.5 0.0078 6.34 d d r r q q 1 1 2 2 5 5 - - 1 1 r r 0 0 - - r r 1.00 0.894 15.0 23.6 0.0024 4.43 3.576 7.51 11.8 0.096 8.86 d d r r q q 1 1 2 2 5 5 - - 1 1 r r 5 5 - - r r 1.50 1.478 13.8 18.3 0.0029 5.70 5.912 6.89 9.15 0.0114 11.40 d d r r q q 1 1 2 2 5 5 - - 2 2 r r 2 2 - - r r 2.20 2.208 10.9 15.0 0.0045 6.97 8.832 5.46 7.50 0.0182 13.9 d d r r q q 1 1 2 2 5 5 - - 3 3 r r 3 3 - - r r 3.30 3.084 9.26 12.7 0.0063 8.23 12.34 4.63 6.35 0.0253 16.5 d d r r q q 1 1 2 2 5 5 - - 4 4 r r 7 7 - - r r 4.70 5.274 7.18 9.71 0.0105 10.8 21.10 3.59 4.86 0.0420 21.6 d d r r q q 1 1 2 2 5 5 - - 6 6 r r 8 8 - - r r 6.80 6.588 6.64 8.68 0.0123 12.0 26.35 3.32 4.34 0.0492 24.0 d d r r q q 1 1 2 2 5 5 - - 8 8 r r 2 2 - - r r 8.20 8.048 5.54 7.86 0.0176 13.3 32.19 2.77 3.93 0.0705 26.6 d d r r q q 1 1 2 2 5 5 - - 1 1 0 0 0 0 - - r r 10.0 9.654 5.35 7.17 0.0189 14.6 38.62 2.67 3.59 0.0757 29.2 d d r r q q 1 1 2 2 5 5 - - 1 1 5 5 0 0 - - r r 15.0 15.35 4.27 5.69 0.0298 18.4 61.40 2.13 2.85 0.120 36.8 d d r r q q 1 1 2 2 5 5 - - 2 2 2 2 0 0 - - r r 22.0 22.36 3.70 4.71 0.0396 22.2 89.44 1.84 2.36 0.159 44.4 d d r r q q 1 1 2 2 5 5 - - 3 3 3 3 0 0 - - r r 33.0 33.74 3.28 3.84 0.0505 27.2 135.0 1.64 1.92 0.203 54.4 d d r r q q 1 1 2 2 5 5 - - 4 4 7 7 0 0 - - r r 47.0 47.47 2.71 3.24 0.0740 32.3 189.9 1.35 1.62 0.297 64.6 d d r r q q 1 1 2 2 5 5 - - 6 6 8 8 0 0 - - r r 68.0 67.91 2.22 2.70 0.101 38.6 271.6 1.11 1.35 0.440 77.2 d d r r q q 1 1 2 2 5 5 - - 8 8 2 2 0 0 - - r r 82.0 86.89 2.05 2.39 0.128 43.7 347.6 1.03 1.20 0.515 87.4 d d r r q q 1 1 2 2 5 5 - - 1 1 0 0 1 1 - - r r 100 102.7 1.78 2.20 0.170 47.5 410.8 0.892 1.10 0.682 95.0 d d r r q q 1 1 2 2 5 5 - - 1 1 5 5 1 1 - - r r 150 151.1 1.48 1.81 0.248 57.6 604.4 0.739 0.905 0.991 115.2 d d r r q q 1 1 2 2 5 5 - - 2 2 2 2 1 1 - - r r 220 216.8 1.19 1.51 0.384 69.0 867.2 0.594 0.755 1.54 138 d d r r q q 1 1 2 2 5 5 - - 3 3 3 3 1 1 - - r r 330 332.6 1.06 1.22 0.482 85.5 1330 0.530 0.610 1.93 171 d d r r q q 1 1 2 2 5 5 - - 4 4 7 7 1 1 - - r r 470 473.1 0.87 1.02 0.718 102 1892 0.434 0.510 2.87 204 d d r r q q 1 1 2 2 5 5 - - 6 6 8 8 1 1 - - r r 680 679.8 0.70 0.85 1.10 122 2719 0.350 0.425 4.42 244 d d r r q q 1 1 2 2 5 5 - - 8 8 2 2 1 1 - - r r 820 828.0 0.60 0.77 1.49 135 3312 0.301 0.385 5.96 270 d d r r q q 1 1 2 2 5 5 - - 1 1 0 0 2 2 - - r r 1000 1008 0.57 0.70 1.69 149 4032 0.283 0.350 6.76 298 1) open circuit inductance test parameters: 100khz, 0.25 vrms, 0.0 adc parallel: (1,2 - 4,2) series: (1 - 4) tie (2 - 3) 2) rms current for an approximate ? t of 40 without core loss. it is recommended that the temperature of the part not exceed 125. 3) peak current for approximately 30% roll-off at 20 4) dcr limits @ 20 5) applied volt-time product (v-?) across the inductor. this value represents the applied v-? at 100khz necessary to generate a core loss equal to 10% of the total losses for a 40c temperature rise. 6) turns ratio (1-2):(3-4) 1:1
drq series dual winding, shielded inductors/transformer p p a a r r a a l l l l e e l l r r a a t t i i n n g g s s s s e e r r i i e e s s r r a a t t i i n n g g s s p p a a r r t t n n u u m m b b e e r r r r a a t t e e d d o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) o o c c l l ( ( 1 1 ) ) i i r r m m s s ( ( 2 2 ) ) i i s s a a t t ( ( 3 3 ) ) d d c c r r ( ( 4 4 ) ) v v o o l l t t ( ( 5 5 ) ) i i n n d d u u c c t t a a n n c c e e + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c + + / / - - 2 2 0 0 % % a a m m p p e e r r e e s s a a m m p p e e r r e e s s t t y y p p . . - - s s e e c c ( ( h h ) ) ( ( h h ) ) p p e e a a k k ( ( h h ) ) p p e e a a k k d d r r q q 1 1 2 2 7 7 - - r r 4 4 7 7 - - r r 0.47 0.419 17.9 56.0 0.00195 3.50 1.676 8.94 28 0.0078 7.00 d d r r q q 1 1 2 2 7 7 - - 1 1 r r 0 0 - - r r 1.00 0.821 15.5 40.0 0.00261 4.90 3.284 7.74 20 0.0104 9.80 d d r r q q 1 1 2 2 7 7 - - 1 1 r r 5 5 - - r r 1.50 1.357 13.5 31.1 0.00341 6.30 5.428 6.77 15.6 0.0137 12.60 d d r r q q 1 1 2 2 7 7 - - 2 2 r r 2 2 - - r r 2.20 2.027 12.5 25.5 0.00373 7.70 8.108 6.23 12.7 0.0161 15.4 d d r r q q 1 1 2 2 7 7 - - 3 3 r r 3 3 - - r r 3.30 2.831 10.4 21.5 0.00567 9.10 11.32 5.23 10.8 0.0229 18.2 d d r r q q 1 1 2 2 7 7 - - 4 4 r r 7 7 - - r r 4.70 4.841 8.25 16.5 0.00917 11.9 19.36 4.13 8.24 0.0367 23.8 d d r r q q 1 1 2 2 7 7 - - 6 6 r r 8 8 - - r r 6.80 7.387 7.34 13.3 0.0116 14.7 29.55 3.67 6.67 0.0465 29.4 d d r r q q 1 1 2 2 7 7 - - 8 8 r r 2 2 - - r r 8.20 8.861 6.32 12.2 0.0157 16.1 35.44 3.16 6.09 0.0627 32.2 d d r r q q 1 1 2 2 7 7 - - 1 1 0 0 0 0 - - r r 10.0 10.47 6.04 11.2 0.0172 17.5 41.88 3.02 5.60 0.0686 35.0 d d r r q q 1 1 2 2 7 7 - - 1 1 5 5 0 0 - - r r 15.0 14.09 5.03 9.66 0.0247 20.3 56.36 2.51 4.83 0.0990 40.6 d d r r q q 1 1 2 2 7 7 - - 2 2 2 2 0 0 - - r r 22.0 22.93 4.00 7.57 0.0391 25.9 91.72 2.00 3.78 0.157 51.8 d d r r q q 1 1 2 2 7 7 - - 3 3 3 3 0 0 - - r r 33.0 33.92 3.23 6.22 0.0600 31.5 135.7 1.61 3.11 0.241 63.0 d d r r q q 1 1 2 2 7 7 - - 4 4 7 7 0 0 - - r r 47.0 47.05 2.95 5.28 0.0719 37.1 188.2 1.47 2.64 0.288 74.2 d d r r q q 1 1 2 2 7 7 - - 6 6 8 8 0 0 - - r r 68.0 66.48 2.44 4.44 0.105 44.1 265.9 1.22 2.22 0.421 88.2 d d r r q q 1 1 2 2 7 7 - - 8 8 2 2 0 0 - - r r 82.0 79.75 2.09 4.06 0.143 48.3 319.0 1.04 2.03 0.573 96.6 d d r r q q 1 1 2 2 7 7 - - 1 1 0 0 1 1 - - r r 100 99.31 1.96 3.64 0.163 53.9 397.2 0.980 1.82 0.653 107.8 d d r r q q 1 1 2 2 7 7 - - 1 1 5 5 1 1 - - r r 150 144.9 1.59 3.01 0.247 65.1 579.6 0.796 1.51 0.989 130.2 d d r r q q 1 1 2 2 7 7 - - 2 2 2 2 1 1 - - r r 220 221.5 1.29 2.43 0.376 80.5 886.0 0.645 1.22 1.50 161 d d r r q q 1 1 2 2 7 7 - - 3 3 3 3 1 1 - - r r 330 323.6 1.04 2.01 0.574 97.3 1294 0.522 1.01 2.30 195 d d r r q q 1 1 2 2 7 7 - - 4 4 7 7 1 1 - - r r 470 467.1 0.85 1.68 0.861 117 1868 0.427 0.838 3.44 234 d d r r q q 1 1 2 2 7 7 - - 6 6 8 8 1 1 - - r r 680 676.7 0.76 1.39 1.08 141 2707 0.380 0.697 4.32 282 d d r r q q 1 1 2 2 7 7 - - 8 8 2 2 1 1 - - r r 820 818.1 0.65 1.27 1.47 155 3272 0.325 0.633 5.88 310 d d r r q q 1 1 2 2 7 7 - - 1 1 0 0 2 2 - - r r 1000 1005 0.61 1.14 1.66 172 4020 0.307 0.571 6.64 344 1) open circuit inductance test parameters: 100khz, 0.25 vrms, 0.0 adc parallel: (1,2 - 4,2) series: (1 - 4) tie (2 - 3) 2) rms current for an approximate ? t of 40 without core loss. it is recommended that the temperature of the part not exceed 125. 3) peak current for approximately 30% roll-off at 20 4) dcr limits @ 20 5) applied volt-time product (v-?) across the inductor. this value represents the applied v-? at 100khz necessary to generate a core loss equal to 10% of the total losses for a 40c temperature rise. 6) turns ratio (1-2):(3-4) 1:1
drq series dual winding, shielded inductors/transformer bottom view 0.60 6.1 0.73 7.6 max front view top view drq74 ### ? 7. 9 7 . 9 series mode dual inductor mode 1. 73 recommended pcb layout 0. 40 1. 73 1. 00 1. 00 0. 40 series mode d ual inductor l2 3 l1 1 4 2 l1 3 1 schematic l2 4 2 3 1 4 parallel mode l1 l2 2 7.6 max 4.45 max mechanical diagrams drq73 series bottom view 0.60 6 . 1 0. 73 0 .8 0 7.6 max. front view top view drq73 ## # ? 7 . 9 7 .9 series mode dual inductor mode 1.73 recommended pcb layout 0 .40 1 .73 1 .00 1 .00 0 .40 series mode d ual inductor l2 3 l1 1 4 2 l1 3 1 schemati c l2 4 2 3 1 l2 l 1 4 parallel mode 2 3. 55 max 7.6 max. drq74 ser ies dimensions in millimeters . ### = inductance v alue per family chart dot indicates pin #1
drq series dual winding, shielded inductors/transformer 2.50 2.05 10.0 b ottom view 2.00 1 2 12.5 max 4 3 1 2 drq127 ### wwll yy r 4 3 ? dual inductor mode se ries mode 3.85 13.80 recommended pcb lay out 13.80 0.50 3.85 1 2.50 2 0.50 4 3 12.5 max 8.0 max f ront view t op view schem atic 34 dual inductor 1 l1 2 l2 3 se ries mode l1 1 l2 l2 p arallel mode 43 1 2 l1 2 4 2.50 2 .05 1 2.5 m ax 10.0 2 .00 1 2 4 3 1 2.5 max b ottom view front vi ew top view 6.00 max 1 2 drq125 ### w wlly y r 4 3 ? dual inductor mode se ries mode 3 .85 13.80 recommended pcb lay out 13.80 1 0.50 2 3 .85 1 4 2.50 3 2 0 .50 4 3 schem atic se ries mode l1 l 1l2 343 dual inductor 121 l2 l 1 l2 4 34 p arallel mode 2 12 mechanical diagrams drq125 series drq127 ser ies dimensions in millimeters . ### = inductance v alue per f amily char t wwllyy = (date code) r = re vision le v el dot indicates pin #1
drq series dual winding, shielded inductors/transformer section a-a a a d r q 7 4 # # # ko bo bo 2.00 0.1 0.1 4.00 ? 1.50 +0.1/-0.0 a o 1 6.00 0.3 0.3 7.50 0.1 1.75 0.10 ? 1.50 min. 12.00 12.00 2 1 3 4 drq74 ser ies 1 2 4 3 a a d r q 1 2 5 # # # w w l l y y ? section a-a k0 1 .5 dia +0.1/-0.0 1 .5 dia min 4 .0 2.0 16.00 1.7 11.5 11.5 24.0 +/-0.3 +/-0.3 b0 b0 a0 drq125 ser ies 1 2 4 3 a a d r q 1 2 7 # # # w w l l y y section a-a r0.3 max. r0.5 typ. k0 1.5 dia +0.1/-0.0 1.5 dia min 4.0 2.0 20.00 1.7 11.5 11.5 24.0 +/-0.3 +/-0.3 b0 b0 a0 drq127 series packaging information d rq73 series dimensions are in millimeters. d irection of feed direction of f eed direction of feed direction of feed parts packaged on 13" diameter reel, 1 ,350 parts per reel. p ar ts pac kaged on 13" diameter reel, 1,100 par ts per reel. parts packaged on 13" diameter reel, 600 parts per reel. parts packaged on 13" diameter reel, 350 parts per reel. 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
drq series dual winding, shielded inductors/transformer 0 10 2 0 3 0 40 5 0 60 70 8 0 9 0 1 00 0 20 40 60 80 100 120 140 160 % of isat o c l ( % ) ocl vs isat drq73 0 2 0 4 0 60 8 0 100 0 20 40 60 80 100 120 140 160 180 % of isat o c l ( % ) ocl vs isat drq74 0 1 0 2 0 3 0 4 0 50 60 70 8 0 9 0 100 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 % of isat o c l ( % ) o cl vs isat drq125 0 1 0 2 0 30 405 0 60 70 80 9 0 100 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 % idc sat o c l ( % ) ocl vs isat drq127 irms der ating with core loss % of applied v olt-s econd % o f l o s s e s f r o m i r m s ( m a x i m u m ) 3 0 0 k h z 2 0 0 k h z 1 0 0 k h z 5 0 k h z 2 5 k h z inductance characteristics core loss
drq series dual winding, shielded inductors/transformer visit us on the w eb at www .cooperb ussmann.com 1225 broken sound pkwy. suite f boca raton, fl 33487 tel: +1-561-998-4100 toll free: +1-888-414-2645 fax: +1-561-241-6640 this bulletin is intended to present product design solutions and technical information that will help the end user with design applications. cooper electronic t echnologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. cooper electronic t echnologies 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 electronic technologies 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. pm-4315 8/06 ?cooper electronic t echnologies 2006

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