Vertical Mount Power Toroidal Inductor The Vertical Mount Power Toroidal Inductors manufactured by Engineered Components Company are designed using stable powdered iron core material. The toroidal core inductor design provides a low external magnetic field and a high core saturation currents. H The standard inductance value tolerance is +/-10% when measured at 1 Khz, (IDC=0). Inductance values and Q values are measured on an HP 4284A LCR meter. Since inductance varies with AC/DC current values, each end application should be evaluated to ensure proper readings. The tabulated current ratings (Rated IDC)are those calculated to cause a 40 deg. C rise in case temperature. These inductors are designed to meet the applicable portions of MIL-C-15305, Grade 1, Class B. The operating temperature range is -55 to +125 deg. C. Inductors are capable of withstanding 500Vdc@50 uA applied between the coil and the case. The wound toroid inductor is secured in the housing with an epoxy resin. A portion of the wound inductor extends above the housing and is not encapsulated. The housing material is a Liquid Crystal Polymer, off-white in color. Marking is applied by silkscreen using blue epoxy paint. The active inductor leads are marked by a coil symbol, while unused leads are marked "NC". The copper leads are tin-lead plated. Product Selection Table PART NUMBER L(uH) W VMPT-1.8 1.8 0.150 VMPT-2.2 2.2 0.150 VMPT-2.7 2.7 0.200 VMPT-3.3 3.3 0.200 VMPT-3.9 3.9 0.200 VMPT-4.7 4.7 0.200 VMPT-5.6 5.6 0.200 VMPT-6.8 6.8 0.200 VMPT-8.2 8.2 0.200 VMPT-10 10.0 0.200 VMPT-12 12.0 0.250 VMPT-15 15.0 0.250 VMPT-18 18.0 0.250 VMPT-22 22.0 0.250 VMPT-27 27.0 0.250 VMPT-33 33.0 0.275 VMPT-39 39.0 0.275 VMPT-47 47.0 0.275 VMPT-56 56.0 0.275 VMPT-68 68.0 0.275 VMPT-82 82.0 0.275 VMPT-100 100.0 0.275 VMPT-120 120.0 0.350 VMPT-150 150.0 0.350 VMPT-180 180.0 0.350 VMPT-220 220.0 0.400 VMPT-270 270.0 0.400 VMPT-330 330.0 0.400 VMPT-390 390.0 0.550 VMPT-470 470.0 0.550 VMPT-560 560.0 0.600 VMPT-680 680.0 0.600 VMPT-820 820.0 0.700 VMPT-1000 1000.0 0.700 VMPT-1200 1200.0 0.725 VMPT-1500 1500.0 0.725 VMPT-1800 1800.0 0.725 L 0.275 0.275 0.325 0.325 0.325 0.325 0.325 0.325 0.325 0.325 0.425 0.425 0.425 0.425 0.425 0.600 0.600 0.600 0.600 0.600 0.600 0.600 0.650 0.650 0.650 0.750 0.750 0.750 0.900 0.900 1.000 1.000 1.200 1.200 1.400 1.400 1.400 H 0.250 0.250 0.350 0.350 0.350 0.350 0.350 0.350 0.350 0.350 0.425 0.425 0.425 0.500 0.525 0.575 0.600 0.600 0.625 0.625 0.650 0.675 0.725 0.750 0.750 0.950 0.975 0.975 1.175 1.175 1.300 1.300 1.600 1.600 1.750 1.775 1.800 A N/A N/A 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.100 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.150 0.200 0.200 0.200 0.200 0.200 0.200 0.400 0.400 0.400 0.400 0.500 0.500 0.500 0.500 0.500 VMPT-470 .030 .220 A W B L LEAD DIAMETERS VMPT-1.8 to VMPT-100: .020" VMPT-120 to VMPT-470: .025" VMPT-560 to VMPT-1800: .032" YYWW NC MADE IN USA BACK VIEW NC DATE CODE IDC (amps) readings for % drops B DCR(ohms) RATED IDC(amps) 10% DROP IN L 20% DROP IN L 30% DROP IN L 0.150 0.02 1.9 0.84 1.39 1.94 0.150 0.02 1.8 0.76 1.26 1.75 0.200 0.03 2.4 1.43 2.39 3.32 0.200 0.03 2.3 1.30 2.16 3.00 0.200 0.03 2.2 1.19 1.99 2.76 0.200 0.04 2.1 1.09 1.81 2.52 0.200 0.04 2.0 0.99 1.66 2.31 0.200 0.04 1.9 0.90 1.50 2.09 0.200 0.05 1.8 0.82 1.37 1.91 0.200 0.05 1.7 0.74 1.24 1.73 0.300 0.06 2.0 0.97 1.62 2.26 0.300 0.07 1.9 0.87 1.45 2.02 0.300 0.07 1.8 0.80 1.33 1.84 0.300 0.06 2.3 0.83 1.39 1.93 0.300 0.06 2.2 0.75 1.25 1.74 0.500 0.08 2.4 0.90 1.50 2.09 0.500 0.08 2.3 0.83 1.38 1.92 0.500 0.09 2.2 0.75 1.26 1.75 0.500 0.11 2.3 0.78 1.29 1.80 0.500 0.12 2.1 0.70 1.17 1.63 0.500 0.14 2.0 0.64 1.07 1.49 0.500 0.15 1.9 0.58 0.97 1.35 0.500 0.17 2.2 0.77 1.28 1.77 0.500 0.19 2.1 0.68 1.14 1.59 0.500 0.20 2.0 0.63 1.04 1.45 0.600 0.17 2.8 0.75 1.24 1.73 0.600 0.18 2.7 0.67 1.12 1.56 0.600 0.20 2.5 0.61 1.01 1.41 0.800 0.15 3.6 0.78 1.29 1.80 0.800 0.16 3.4 0.71 1.18 1.64 0.800 0.19 3.7 0.84 1.40 1.94 0.800 0.21 3.5 0.76 1.27 1.76 1.000 0.16 4.7 0.83 1.38 1.91 1.000 0.18 4.4 0.75 1.25 1.73 1.200 0.20 4.7 0.84 1.40 1.95 1.200 0.22 4.5 0.75 1.25 1.74 1.200 0.25 4.3 0.69 1.14 1.59 Special modules can often be manufactured to provide for customer specific applications. engineered components company A Division of Cornucopia Tool & Plastics, Inc. PO Box 1915, 448 Sherwood Rd., Paso Robles CA 93447 Phone: 805-369-0034 Fax: 805-369-0033 Web: www.ec2.com