DRH SERIES BASIC MODEL HIGH CURRENT CHOKE Applications : Power supplies and power amplifiers. Switching regulators. Speaker crossover networks. RFI suppression. Shape and Dimensions (Dimensions are in mm) : Item A Max. C Typ. D Max. H Min. DRH1420 21.5 12.0 16.5 3.0 DRH1820 21.5 15.0 21.0 3.0 DRH2620 21.5 22.0 28.0 5.0 DRH3525 28.0 30.0 40.0 3.6 Features : Product Identification : High saturation current . DRH 1820 - 100 K - UL Wide range of inductance. (1) Ideal for using in switching regulated power supply applications. (2) (3) (4) (5) (1) Type : Basic model high current choke . (2) Style : Core OD=18 mm L=20 mm . With center hole for mechanical mounting. (3) Inductance : Example : 100 for 10 uH Varnish coated or UL tube. (4) Inductance tolerance: K: 10%; M: 20% . (5) Sleeve: UL tube, black; No code, no sleeve. Characteristics : Test equipment and test setup : Saturation Current (Isat): The current when the L : LCR meter @ 1kHz . inductance becomes 10% lower than its initial DCR : Milli- meter . Electrical specifications at 25 value.(Ta=20) Operating temperature : -20 to 85 . Lasting. Leaning. Leading 3L Electronic Corp. 36.1 Web : http://www.3lcoil.com Part No. 1R0M 1R2M 1R5M 1R8M 2R2M 2R7M 3R3M 3R9M 4R7M 5R6M 6R8M 8R2M 100K 120K 150K 180K 220K 270K 330K 390K 470K 560K 680K 820K 101K 121K 151K 181K 221K 271K 331K 391K 471K 561K 681K 821K 102K 122K 152K 182K 222K 272K 332K 392K 472K 562K 682K 822K 103K 123K 153K L @1kHz (uH) 1.0 1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 1200 1500 1800 2200 2700 3300 3900 4700 5600 6800 8200 10000 12000 15000 DCR () Max. 1420 0.003 0.003 0.004 0.004 0.005 0.005 0.005 0.006 0.007 0.007 0.008 0.009 0.010 0.011 0.015 0.016 0.025 0.030 0.040 0.046 0.062 0.069 0.077 0.083 0.095 0.127 0.181 0.217 0.240 0.300 0.336 0.460 0.636 0.696 1820 0.003 0.003 0.003 0.003 0.004 0.005 0.005 0.005 0.005 0.006 0.007 0.007 0.009 0.009 0.013 0.018 0.019 0.026 0.029 0.030 0.035 0.039 0.053 0.060 0.080 0.090 0.098 0.110 0.150 0.213 0.305 0.320 0.355 0.388 0.430 0.590 0.818 1.140 1.260 1.390 1.540 I sat ( A ) Max. 2620 0.003 0.003 0.003 0.004 0.004 0.006 0.008 0.009 0.01 0.011 0.012 0.017 0.022 0.024 0.026 0.029 0.032 0.034 0.046 0.064 0.072 0.080 0.110 0.122 0.169 0.187 0.205 0.256 0.288 0.426 0.462 0.518 0.705 1.020 1.140 1.270 1.670 1.860 3525 0.003 0.003 0.004 0.004 0.004 0.005 0.005 0.006 0.008 0.009 0.01 0.011 0.012 0.018 0.019 0.021 0.023 0.025 0.028 0.040 0.045 0.050 0.056 0.074 0.082 0.114 0.125 0.139 0.154 0.216 0.232 0.324 0.360 0.494 0.555 0.773 0.845 1.140 1.600 1.760 1.950 2.760 3.040 3.390 1420 28 26 23 21 19 17 15 14 13 12 11 10 9.0 8.5 7.5 6.8 6.0 5.5 5.0 4.5 4.0 3.7 3.4 3.1 2.8 2.5 2.3 2.1 1.9 1.7 1.5 1.4 1.3 1.2 1820 60 54 48 44 40 36 33 30 28 25 23 21 19 17 15 14 13 11 10 9.5 8.8 8.0 7.2 6.6 6.0 5.5 4.8 4.4 4.0 3.6 3.3 3.0 2.7 2.5 2.3 2.1 1.9 1.7 1.5 1.4 1.2 2620 32.0 29.0 26.0 24.0 22.0 20.0 18.0 16.0 15.0 13.5 12.0 11.0 10.0 9.2 8.5 7.6 7.0 6.5 5.8 5.2 4.7 4.3 3.9 3.5 3.2 2.9 2.7 2.4 2.2 2.0 1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 3525 95 95 79 79 69 61 55 49 41 38 36 31 28 27 26 25 23 20 18 17 15 13 12 11 10 9.2 8.3 7.6 6.8 6.2 5.7 5.1 4.6 4.2 3.8 3.4 3.1 2.9 2.5 2.3 2.0 1.8 1.7 1.5 * Due to the limited space, the catalogue shows the typical specifications only. For more specific details ( characteristics graph, reliability, and others), kindly invite you to access 3L official website www.3lcoil.com for better known. Lasting. Leaning. Leading 3L Electronic Corp. 36.2 Web : http://www.3lcoil.com