® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Description • Surface mount magnetics that can be used as single or coupled inductors or 1:1 transformers that provide isolation between two windings • OCTA-PAC’s are designed around high frequency, low loss material • ECONO-PAC’s are a lower cost version of OCTA-PAC’s offering high saturation flux density • OCTA-PAC PLUS’s offer higher current ratings and higher saturation flux densities than OCTA-PAC and ECONO-PAC • Secure 4 Terminal Mounting • Inductor more versatile inductance combination by series or parallel connections Applications • Computer and portable power devices • LCD panels, DVD players • Inductor: DC-DC converters • Buck, boost, forward, and resonant converters • Noise filtering and filter chokes • Transformers: 1:1 300Vdc isolation, flyback, sepic Environmental Data • Storage temperature range: -40°C to +125°C • Operating ambient temperature range: -40°C to +85°C (range is application specific). • Infrared reflow temperature: +240°C for 30 seconds maximum Packaging • Supplied in tape and reel packaging, 1100 (EP01, OPA1, and OP01), 800 (EP02, OP02, OPA2, EP03, OPA3, and OP03), and 600 (EP04, OPA4, and OP04) per reel Legend • No suffix is OCTA-PAC® • P suffix is ECONO-PAC™ • A suffix is OCTA-PAC® PLUS PARALLEL Part Number CTX0.47-1P CTX0.68-1P CTX1-1P CTX2-1P CTX5-1P CTX8-1P CTX10-1P CTX15-1P CTX20-1P CTX25-1P CTX33-1P CTX50-1P CTX68-1P CTX100-1P CTX150-1P CTX200-1P CTX300-1P CTX0.47-2P CTX0.68-2P CTX1-2P CTX2-2P CTX5-2P CTX8-2P CTX10-2P CTX15-2P CTX20-2P CTX25-2P CTX33-2P CTX50-2P CTX68-2P CTX100-2P CTX150-2P CTX200-2P CTX300-2P Open Circuit Inductance µH +/-20% .42 .60 1.07 2.02 4.83 8.08 9.62 15.03 20.46 25.40 32.33 50.52 68.40 99.01 150.72 198.41 299.87 .54 .85 1.22 2.18 4.90 7.65 9.83 14.99 19.58 24.79 32.67 49.10 68.85 99.14 148.10 201.59 300.42 Full Load Inductance µH min. .31 .43 .73 1.36 3.37 5.31 6.23 9.62 14.12 17.07 22.27 33.57 43.65 63.64 96.64 130.79 190.05 .42 .64 .89 1.56 3.57 5.31 6.73 10.51 13.37 16.60 21.29 35.31 47.93 69.56 100.07 138.49 197.52 SERIES Full Load Current Adc DC Resistance ohms max. 5.50 5.10 4.50 3.40 2.00 1.80 1.70 1.40 1.00 .96 .80 .70 .66 .54 .44 .36 .32 5.90 5.40 5.00 3.90 2.50 2.30 2.10 1.60 1.50 1.40 1.30 .82 .76 .62 .56 .46 .42 .005 .006 .008 .013 .040 .052 .057 .087 .158 .177 .250 .316 .373 .557 .844 1.208 1.525 .006 .007 .008 .014 .032 .040 .045 .085 .097 .109 .126 .305 .362 .541 .665 .951 1.176 Open Circuit Inductance µH +/-20% 1.67 2.40 4.28 8.08 19.31 32.33 38.48 60.12 81.83 101.60 129.32 202.07 273.61 396.06 602.87 793.65 1199.46 2.18 3.40 4.90 8.70 19.58 30.60 39.30 59.98 78.34 99.14 130.70 196.38 275.40 396.58 592.42 806.34 1201.70 Full Load Inductance µH min. Full Load Current Adc DC Resistance ohms max. 1.25 1.74 2.92 5.44 13.47 21.23 24.94 38.47 56.47 68.29 89.06 134.27 174.61 254.55 386.56 523.16 760.19 1.69 2.55 3.57 6.26 14.26 21.23 26.92 42.02 53.48 66.38 85.17 141.24 191.71 278.22 400.27 553.97 790.08 2.75 2.55 2.25 1.70 1.00 .90 .85 .70 .50 .48 .40 .35 .33 .27 .22 .18 .16 2.95 2.70 2.50 1.95 1.25 1.15 1.05 .80 .75 .70 .65 .41 .38 .31 .28 .23 .21 .021 .025 .032 .054 .161 .207 .227 .348 .634 .708 1.001 1.263 1.490 2.227 3.376 4.831 6.100 .024 .029 .033 .055 .128 .158 .179 .339 .387 .436 .503 1.221 1.445 2.162 2.660 3.804 4.703 ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers PARALLEL Part Number CTX0.47-3P CTX0.68-3P CTX1-3P CTX2-3P CTX5-3P CTX8-3P CTX10-3P CTX15-3P CTX20-3P CTX25-3P CTX33-3P CTX50-3P CTX68-3P CTX100-3P CTX150-3P CTX200-3P CTX300-3P CTX0.47-4P CTX0.68-4P CTX1-4P CTX2-4P CTX5-4P CTX8-4P CTX10-4P CTX15-4P CTX20-4P CTX25-4P CTX33-4P CTX50-4P CTX68-4P CTX100-4P CTX150-4P CTX200-4P CTX300-4P CTX0.47-1 CTX0.68-1 CTX1-1 CTX2-1 CTX5-1 CTX8-1 CTX10-1 CTX15-1 CTX20-1 CTX25-1 CTX33-1 CTX50-1 CTX68-1 CTX100-1 CTX150-1 CTX200-1 CTX300-1 CTX0.47-2 CTX0.68-2 CTX1-2 CTX2-2 CTX5-2 CTX8-2 CTX10-2 CTX15-2 CTX20-2 CTX25-2 CTX33-2 CTX50-2 CTX68-2 CTX100-2 Open Circuit Inductance µH +/-20% .46 .67 .91 1.85 4.74 8.16 9.79 14.50 20.15 25.33 32.63 50.02 68.84 101.31 149.85 200.10 298.39 .49 .76 1.10 1.95 5.15 7.81 9.88 14.76 20.62 25.65 33.21 48.80 67.37 99.09 149.45 200.11 298.93 .40 .63 .90 2.03 4.90 8.10 10.00 14.40 19.60 25.60 32.40 50.63 67.60 99.23 148.23 202.50 302.50 .42 .75 1.18 2.30 4.70 7.94 10.58 15.23 20.73 24.86 31.77 51.18 67.87 99.45 Full Load Inductance µH min. .35 .50 .65 1.24 3.04 4.90 5.71 8.50 13.12 16.16 20.32 33.06 44.15 65.50 90.92 116.51 172.12 .37 .56 .81 1.42 3.56 5.15 6.70 9.52 13.44 17.17 22.93 32.21 43.04 69.54 101.46 131.37 188.03 .26 .41 .56 1.00 2.66 4.08 4.85 8.74 11.54 16.35 19.84 29.34 39.73 58.72 85.16 107.60 191.38 .29 .50 .76 1.27 2.66 4.18 5.18 8.53 12.36 16.09 15.90 28.79 38.71 57.45 SERIES Full Load Current Adc DC Resistance ohms max. 6.20 5.70 5.40 4.60 3.20 2.80 2.70 2.20 1.50 1.40 1.30 .92 .84 .68 .64 .60 .50 7.90 7.20 5.90 4.60 3.30 3.00 2.50 2.30 1.90 1.60 1.30 1.20 1.10 .72 .64 .60 .54 5.50 4.50 4.20 4.10 2.30 2.00 1.90 1.10 1.00 .74 .72 .64 .54 .44 .38 .37 .22 6.50 5.50 4.60 4.50 3.00 2.60 2.50 1.70 1.30 1.00 1.40 .92 .78 .63 .006 .007 .008 .011 .022 .030 .033 .050 .111 .125 .146 .277 .328 .501 .621 .731 .926 .005 .006 .008 .014 .027 .033 .047 .057 .084 .115 .166 .201 .238 .565 .696 .810 1.003 .005 .006 .007 .010 .030 .039 .044 .080 .146 .167 .293 .365 .516 .784 .965 1.142 1.431 .005 .006 .007 .010 .021 .027 .031 .059 .107 .117 .105 .210 .303 .457 Open Circuit Inductance µH +/-20% 1.85 2.66 3.63 7.40 18.94 32.63 39.15 58.02 80.59 101.31 130.54 200.10 275.35 405.22 599.40 800.38 1193.55 1.95 3.05 4.39 7.81 20.62 31.23 39.53 59.05 82.47 102.60 132.86 195.20 269.50 396.38 597.80 800.44 1195.72 1.60 2.50 3.60 8.10 19.60 32.40 40.00 57.60 78.40 102.40 129.60 202.50 270.40 396.90 592.90 810.00 1210.00 1.69 3.01 4.70 9.21 18.80 31.77 42.30 60.91 82.91 99.45 127.09 204.73 271.47 397.81 Full Load Inductance µH min. Full Load Current Adc DC Resistance ohms max. 1.42 1.98 2.62 4.97 12.15 19.60 22.85 34.01 52.48 64.66 81.30 132.24 176.61 262.02 363.68 466.03 688.50 1.49 2.24 3.24 5.69 14.23 20.61 26.79 38.09 53.76 68.68 91.72 128.83 172.16 278.15 405.83 525.47 752.13 1.05 1.63 2.24 4.01 10.64 16.34 19.40 34.96 46.15 65.42 79.37 117.38 158.92 234.88 340.64 430.39 765.54 1.17 1.98 3.04 5.07 10.65 16.72 20.72 34.10 49.46 64.35 63.59 115.16 154.83 229.79 3.10 2.85 2.70 2.30 1.60 1.40 1.35 1.10 .75 .70 .65 .46 .42 .34 .32 .30 .25 3.95 3.60 2.95 2.30 1.65 1.50 1.25 1.15 .95 .80 .65 .60 .55 .36 .32 .30 .27 2.75 2.25 2.10 2.05 1.15 1.00 .95 .55 .50 .37 .36 .32 .27 .22 .19 .19 .11 3.25 2.75 2.30 2.25 1.50 1.30 1.25 .85 .65 .50 .70 .46 .39 .32 .025 .028 .032 .045 .090 .119 .131 .198 .443 .499 .571 1.108 1.312 2.005 2.483 2.925 3.702 .019 .023 .033 .055 .107 .131 .187 .228 .337 .461 .662 .805 .952 2.259 2.784 3.240 4.011 .020 .024 .028 .040 .122 .157 .176 .319 .583 .668 1.171 1.461 2.064 3.137 3.861 4.567 5.724 .019 .024 .028 .038 .084 .108 .125 .236 .426 .466 .420 .839 1.214 1.828 ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers PARALLEL Part Number CTX150-2 CTX200-2 CTX300-2 CTX0.47-3 CTX0.68-3 CTX1-3 CTX2-3 CTX5-3 CTX8-3 CTX10-3 CTX15-3 CTX20-3 CTX25-3 CTX33-3 CTX50-3 CTX68-3 CTX100-3 CTX150-3 CTX200-3 CTX300-3 CTX0.47-4 CTX0.68-4 CTX1-4 CTX2-4 CTX5-4 CTX8-4 CTX10-4 CTX15-4 CTX20-4 CTX25-4 CTX33-4 CTX50-4 CTX68-4 CTX100-4 CTX150-4 CTX200-4 CTX300-4 Open Circuit Inductance µH +/-20% 147.39 198.58 300.80 .38 .60 .86 1.94 4.70 7.78 9.60 15.00 20.18 24.58 32.86 50.78 67.42 101.40 149.78 198.74 301.06 .44 .78 1.23 1.76 4.90 8.28 9.60 14.16 19.60 25.92 33.12 50.18 67.08 99.23 148.23 200.70 298.12 Full Load Inductance µH min. 93.46 122.94 169.06 .27 .42 .57 1.05 2.56 3.74 4.38 7.26 10.76 15.64 19.69 27.18 36.53 52.48 97.16 119.18 157.44 .32 .55 .85 1.06 2.59 4.29 4.82 6.76 10.68 13.32 16.82 25.03 35.29 54.56 77.17 111.08 147.92 SERIES Full Load Current Adc DC Resistance ohms max. .43 .39 .38 6.00 5.00 4.80 4.70 3.00 2.80 2.70 2.00 1.50 .98 .96 .94 .80 .70 .38 .39 .40 7.00 6.00 5.00 4.90 4.40 3.50 3.40 3.00 2.10 2.00 1.80 1.50 1.20 .92 .82 .64 .62 .560 .796 1.231 .005 .006 .007 .010 .019 .025 .028 .043 .078 .086 .083 .239 .277 .345 .430 .619 .951 .004 .005 .006 .007 .014 .018 .019 .024 .055 .063 .072 .111 .157 .302 .372 .545 .672 Open Circuit Inductance µH +/-20% 589.57 794.30 1203.20 1.54 2.40 3.46 7.78 18.82 31.10 38.40 60.00 80.74 98.30 131.42 203.14 269.66 405.60 599.14 794.98 1204.22 1.76 3.14 4.90 7.06 19.60 33.12 38.42 56.64 78.40 103.68 132.50 200.70 268.32 396.90 592.90 802.82 1192.46 Full Load Inductance µH min. Full Load Current Adc DC Resistance ohms max. 373.84 491.76 676.24 1.08 1.67 2.28 4.22 10.26 14.98 17.54 29.06 43.04 62.56 78.77 108.71 146.11 209.93 388.63 476.71 629.75 1.29 2.21 3.41 4.24 10.37 17.14 19.28 27.03 42.73 53.27 67.27 100.11 141.15 218.25 308.69 444.32 591.66 .22 .20 .19 3.00 2.50 2.40 2.35 1.50 1.40 1.35 1.00 .75 .49 .48 .47 .40 .35 .19 .20 .20 3.50 3.00 2.50 2.45 2.20 1.75 1.70 1.50 1.05 1.00 .90 .75 .60 .46 .41 .32 .31 2.241 3.184 4.929 .020 .024 .028 .040 .077 .099 .111 .172 .312 .346 .331 .956 1.109 1.381 1.718 2.475 3.083 .016 .020 .024 .028 .056 .072 .078 .096 .220 .253 .287 .443 .630 1.210 1.488 2.180 2.687 ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Part Number Rated Inductance (µH) CTX0.33-1A CTX0.68-1A CTX1-1A CTX2-1A CTX5-1A CTX8-1A CTX10-1A CTX15-1A CTX20-1A CTX25-1A CTX33-1A CTX50-1A CTX68-1A CTX100-1A CTX150-1A CTX200-1A CTX300-1A CTX0.33-2A CTX0.68-2A CTX1-2A CTX2-2A CTX5-2A CTX8-2A CTX10-2A CTX15-2A CTX20-2A CTX25-2A CTX33-2A CTX50-2A CTX68-2A CTX100-2A CTX150-2A CTX200-2A CTX300-2A CTX0.33-3A CTX0.68-3A CTX1-3A CTX2-3A CTX5-3A CTX8-3A CTX10-3A CTX15-3A CTX20-3A CTX25-3A CTX33-3A CTX50-3A 0.33 0.68 1.0 2.0 5.0 8.0 10.0 15.0 20.0 25.0 33.0 50.0 68.0 100.0 150.0 200.0 300.0 0.33 0.68 1.0 2.0 5.0 8.0 10.0 15.0 20.0 25.0 33.0 50.0 68.0 100.0 150.0 200.0 300.0 0.33 0.68 1.0 2.0 5.0 8.0 10.0 15.0 20.0 25.0 33.0 50.0 OCL (1) nominal +/-25% (µH) 0.402 0.752 1.18 2.30 4.70 7.94 10.58 15.23 20.73 24.86 34.26 51.18 67.87 99.45 147.4 198.6 300.8 0.284 0.675 1.26 1.98 5.06 7.90 11.38 15.48 20.22 25.60 34.84 49.38 66.44 102.38 152.9 197.5 303.7 0.368 0.688 1.08 2.11 5.20 8.43 9.68 15.52 20.81 24.77 33.71 49.71 I sat. (2) Amperes Peak 12.5 9.4 7.5 5.36 3.75 2.88 2.5 2.08 1.79 1.63 1.39 1.14 0.99 0.82 0.67 0.58 0.47 18.8 12.5 9.38 7.50 4.69 3.75 3.13 2.68 2.34 2.08 1.79 1.50 1.29 1.04 0.85 0.75 0.60 15.0 11.3 9.0 6.43 4.09 3.21 3.00 2.37 2.05 1.88 1.61 1.32 Parallel Ratings I rms. (3) DCR Ω (4) Amperes typ. @ 20°C. 10.0 9.0 7.26 5.64 4.27 3.37 2.84 2.07 1.71 1.46 1.22 0.99 0.92 0.74 0.67 0.62 0.56 10.9 9.4 8.22 6.74 4.34 3.50 2.89 2.69 2.24 1.89 1.56 1.28 1.07 0.75 0.68 0.64 0.58 11.4 9.3 8.38 7.26 5.24 4.23 3.64 3.25 2.43 2.34 1.93 1.56 1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4) 2) Peak current for approximately 30% roll-off 3) RMS current, delta temp. of 40° C ambient temperature of 85° C 4) Values @ 20° C, Maximum DCR is +15% of typical value. 0.0037 0.0046 0.0070 0.012 0.020 0.033 0.046 0.087 0.127 0.173 0.249 0.381 0.437 0.686 0.832 0.963 1.181 0.0033 0.0045 0.0058 0.0090 0.021 0.032 0.047 0.054 0.078 0.111 0.162 0.240 0.342 0.695 0.842 0.950 1.174 0.0032 0.0048 0.0059 0.0079 0.015 0.023 0.032 0.039 0.071 0.076 0.112 0.171 Volt (7) µ-Sec .93 1.24 1.55 2.17 3.11 4.04 4.66 5.59 6.52 7.14 8.39 10.3 11.8 14.3 17.4 20.2 24.9 .85 1.28 1.71 2.14 3.42 4.27 5.13 5.98 6.84 7.69 8.97 10.7 12.4 15.4 18.8 21.4 26.5 0.97 1.29 1.61 2.26 3.54 4.51 4.83 6.12 7.09 7.73 9.02 11.0 OCL (1) nominal +/-25% (µH) 1.61 3.01 4.70 9.21 18.8 31.77 42.30 60.91 82.91 99.45 137.1 204.7 271.5 397.8 589.6 794.3 1203 1.14 2.70 5.06 7.90 20.22 31.60 45.50 61.94 80.90 102.38 139.4 197.5 265.8 409.5 611.8 790.0 1215 1.47 2.75 4.20 8.43 20.81 33.77 38.70 62.09 83.25 99.07 134.8 198.8 I sat. (2) Amperes Peak 6.25 4.69 3.75 2.68 1.88 1.44 1.25 1.04 0.89 0.82 0.69 0.57 0.49 0.41 0.33 0.29 0.23 9.38 6.25 4.69 3.75 2.34 1.88 1.56 1.34 1.17 1.04 0.89 0.75 0.65 0.52 0.43 0.38 0.30 7.50 5.63 4.50 3.21 2.05 1.61 1.50 1.18 1.02 0.94 0.80 0.66 Series Ratings I rms. (3) DCR Ω (4) Amperes typ. @ 20°C. 4.98 4.48 3.63 2.82 2.13 1.69 1.42 1.03 0.86 0.73 0.61 0.49 0.46 0.37 0.33 0.31 0.28 5.47 4.68 4.11 3.37 2.17 1.75 1.45 1.35 1.12 0.94 0.78 0.64 0.54 0.38 0.34 0.32 0.29 5.72 4.64 4.19 3.63 2.62 2.12 1.82 1.63 1.22 1.17 0.96 0.78 0.015 0.0185 0.0282 0.0470 0.082 0.130 0.183 0.348 0.507 0.693 0.995 1.524 1.749 2.745 3.329 3.854 4.726 0.0132 0.0180 0.0233 0.035 0.084 0.129 0.188 0.218 0.313 0.443 0.649 0.961 1.367 2.778 3.366 3.800 4.697 0.0128 0.0194 0.0238 0.0317 0.061 0.093 0.126 0.158 0.282 0.306 0.449 0.686 Volt (7) µ-Sec 1.86 2.49 3.11 4.35 6.21 8.08 9.32 11.2 13.0 14.3 16.8 20.5 23.6 28.6 34.8 40.4 49.7 1.71 2.56 3.42 4.27 6.84 8.55 10.3 12.0 13.7 15.4 17.9 21.4 24.8 30.8 37.6 42.7 53.0 1.93 2.58 3.22 4.51 7.09 9.02 9.67 12.2 14.2 15.5 18.0 21.9 5) Hipot rating: winding to winding: 300Vdc min. 6) Turns Ratio: (1-2):(4-3) 1:1 7) Applied volt-time product (v-us) across the inductor. This value represents the applied V-us at 300KHz necessary to generate a core loss equal to 10% of the total losses for a 40°C temperature rise. ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Part Number Rated Inductance (µH) CTX68-3A CTX100-3A CTX150-3A CTX200-3A CTX300-3A CTX0.33-4A CTX0.68-4A CTX1-4A CTX2-4A CTX5-4A CTX8-4A CTX10-4A CTX15-4A CTX20-4A CTX25-4A CTX33-4A CTX50-4A CTX68-4A CTX100-4A CTX150-4A CTX200-4A CTX300-4A 68.0 100.0 150.0 200.0 300.0 0.33 0.68 1.0 2.0 5.0 8.0 10.0 15.0 20.0 25.0 33.0 50.0 68.0 100.0 150.0 200.0 300.0 OCL (1) nominal +/-25% (µH) 68.80 99.07 149.7 198.8 296.2 0.313 0.744 1.39 2.18 4.26 8.70 10.53 14.70 19.58 25.14 34.80 50.11 68.21 100.57 153.5 200.4 302.8 I sat. (2) Amperes Peak 1.13 0.94 0.76 0.66 0.54 22.5 15.0 11.25 9.00 6.43 4.50 4.09 3.46 3.00 2.65 2.25 1.88 1.61 1.32 1.07 0.94 0.76 Parallel Ratings I rms. (3) DCR Ω (4) Amperes typ. @ 20°C. 1.28 1.05 0.86 0.71 0.56 12.2 10.6 9.23 8.38 7.21 5.49 4.67 3.87 3.62 3.02 2.49 2.05 1.70 1.37 1.10 0.92 0.75 0.253 0.379 0.571 0.829 1.309 0.0030 0.0040 0.0052 0.0063 0.0085 0.015 0.020 0.029 0.034 0.048 0.071 0.104 0.153 0.235 0.365 0.521 0.787 1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4) 2) Peak current for approximately 30% roll-off 3) RMS current, delta temp. of 40° C without core loss, ambient temperature of 85°C. It is recommended that the temperature of the part not exceed 125°C 4) Values @ 20° C, Maximum DCR is +15% of typical value. Volt (7) µ-Sec 12.9 15.5 19.0 21.9 26.7 0.98 1.47 1.96 2.45 3.44 4.91 5.40 6.38 7.36 8.34 9.81 11.8 13.7 16.7 20.6 23.6 29.0 OCL (1) nominal +/-25% (µH) 275.2 396.3 598.7 795.3 1185 1.25 2.98 5.57 8.70 17.05 34.80 42.11 58.81 78.30 100.51 139.2 200.4 272.8 402.3 613.9 801.8 1211 I sat. (2) Amperes Peak 0.56 0.47 0.38 0.33 0.27 11.25 7.50 5.63 4.50 3.21 2.25 2.05 1.73 1.50 1.32 1.13 0.94 0.80 0.66 0.54 0.47 0.38 Series Ratings I rms. (3) DCR Ω (4) Amperes typ. @ 20°C. 0.64 0.53 0.43 0.35 0.28 6.09 5.28 4.62 4.19 3.61 2.74 2.33 1.94 1.81 1.51 1.25 1.03 0.85 0.69 0.55 0.46 0.37 1.013 1.514 2.283 3.315 5.236 0.0119 0.0158 0.0207 0.0251 0.0339 0.059 0.081 0.117 0.135 0.193 0.283 0.418 0.612 0.939 1.462 2.085 3.148 Volt (7) µ-Sec 25.8 30.9 38.0 43.8 53.5 1.96 2.94 3.93 4.91 6.87 9.81 10.8 12.8 14.7 16.7 19.6 23.6 27.5 33.4 41.2 47.1 57.9 5) Hipot rating: winding to winding: 300Vdc min. 6) Turns Ratio: (1-2):(4-3) 1:1 7) Applied volt-time product (v-us) across the inductor. This value represents the applied V-us at 300KHz necessary to generate a core loss equal to 10% of the total losses for a 40°C temperature rise. ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Mechanical Diagrams CTX 1, 1P, 1A Series CTX 2, 2P, 2A Series CTX 3, 3P, 3A Series CTX 4, 4P, 4A Series Dimensions in Millimeters. wwllyy = (date code) R = revision level ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Packaging Information CTX 1, 1P, 1A Series ➞ Direction of Feed Parts packaged on 13" Diameter reel, 1,100 parts per reel. CTX 2, 2P, 2A Series Direction of Feed ➞ Parts packaged on 13" Diameter reel, 800 parts per reel. CTX 3, 3P, 3A Series Direction of Feed ➞ Parts packaged on 13" Diameter reel, 800 parts per reel. CTX 4, 4P, 4A Series Direction of Feed Dimensions are in millimeters. ➞ Parts packaged on 13" Diameter reel, 600 parts per reel. ® ECONO-PAC™/OCTA-PAC® OCTA-PAC® PLUS Power Inductors and Transformers Performance Characteristics TEMPERATURE RISE VS. RATED CURRENT INDUCTANCE VS. CURRENT Max. Ambient plus Rise = 125°C 140 ECONO-PAC 120 Degrees C Percentage of Inductance 100 90 80 70 60 50 40 30 20 10 0 0.00 OCTA-PAC 100 ECONO-PAC & OCTA-PAC 80 60 40 20 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 0 0.00 2.50 0.25 0.50 Per Unit Full Load Current +5 Percentage Change in Inductance 1.50 1.75 2.00 2.25 2.50 • FREQUENCY RESPONSE: Wide-band frequency response to 1 megaHertz. OCTA-PAC -15 1.25 • INDUCTANCE VS. FREQUENCY: Inductance roll-off versus Frequency approximates 3% at 1 megaHertz. ECONO-PAC -35 1.00 • INDUCTANCE VS. CURRENT: Inductance will fall off as DC Current is increased. (See Inductance vs. Current graph). INDUCTANCE VS. TEMPERATURE +8 +6 +4 +2 +0 -2 -4 -6 -8 -10 -12 -14 0.75 Per Unit Full Load Current +25 +45 +65 • CURRENT LIMITATION: The maximum allowable currents are defined by the internal “hot-spot” temperatures which are limited to 130°C, including ambient. +85 +105 +125 Temperature in Degrees C. OCTA-PAC® PLUS Typical Inductance vs. DC Current OCTA-PAC® PLUS Winding Loss Derating with Core Loss 100 50 40 30 20 10 70 Hz 0K 80 10 60 60 30 0K Hz 20 0K Hz % of OCL 70 40 50 50 0K Hz 80 20 1M Hz % of Losses from Irms (maximum) 0 90 90 92 94 95 96 97 98 99 0 10 0 20 40 60 80 100 % of Isat PM-4314 1/04 © Cooper Electronic Technologies 2004 120 140 160 180 200 20 30 40 50 60 80 100 200 300 400 500 600 800 1000 % of Applied Volt-µ-Second Rating Visit us on the Web at www.cooperET.com 3601 Quantum Boulevard Boynton Beach, Florida 33426-8638 Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Electronic Technologies 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.