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
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.
The standard inductance value tolerance is +/-10% when measured at 1 Khz, (I =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 I )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.
DC
DC
Specialmodulescanoftenbemanufacturedtoprovideforcustomerspecificapplications.
I (amps)readingsfor%drops
DC
ProductSelectionTable
PARTNUMBERL(uH)WLHABDCR(ohms)RATEDI (amps) 10%DROPINL20%DROPINL30%DROPINL
VMPT-1.81.80.1500.2750.250N/A0.1500.021.90.841.391.94
VMPT-2.22.20.1500.2750.250N/A0.1500.021.80.761.261.75
VMPT-2.72.70.2000.3250.3500.1000.2000.032.41.432.393.32
VMPT-3.33.30.2000.3250.3500.1000.2000.032.31.302.163.00
VMPT-3.93.90.2000.3250.3500.1000.2000.032.21.191.992.76
VMPT-4.74.70.2000.3250.3500.1000.2000.042.11.091.812.52
VMPT-5.65.60.2000.3250.3500.1000.2000.042.00.991.662.31
VMPT-6.86.80.2000.3250.3500.1000.2000.041.90.901.502.09
VMPT-8.28.20.2000.3250.3500.1000.2000.051.80.821.371.91
VMPT-1010.00.2000.3250.3500.1000.2000.051.70.741.241.73
VMPT-1212.00.2500.4250.4250.1500.3000.062.00.971.622.26
VMPT-1515.00.2500.4250.4250.1500.3000.071.90.871.452.02
VMPT-1818.00.2500.4250.4250.1500.3000.071.80.801.331.84
VMPT-2222.00.2500.4250.5000.1500.3000.062.30.831.391.93
VMPT-2727.00.2500.4250.5250.1500.3000.062.20.751.251.74
VMPT-3333.00.2750.6000.5750.1500.5000.082.40.901.502.09
VMPT-3939.00.2750.6000.6000.1500.5000.082.30.831.381.92
VMPT-4747.00.2750.6000.6000.1500.5000.092.20.751.261.75
VMPT-5656.00.2750.6000.6250.1500.5000.112.30.781.291.80
VMPT-6868.00.2750.6000.6250.1500.5000.122.10.701.171.63
VMPT-8282.00.2750.6000.6500.1500.5000.142.00.641.071.49
VMPT-100100.00.2750.6000.6750.1500.5000.151.90.580.971.35
VMPT-120120.00.3500.6500.7250.2000.5000.172.20.771.281.77
VMPT-150150.00.3500.6500.7500.2000.5000.192.10.681.141.59
VMPT-180180.00.3500.6500.7500.2000.5000.202.00.631.041.45
VMPT-220220.00.4000.7500.9500.2000.6000.172.80.751.241.73
VMPT-270270.00.4000.7500.9750.2000.6000.182.70.671.121.56
VMPT-330330.00.4000.7500.9750.2000.6000.202.50.611.011.41
VMPT-390390.00.5500.9001.1750.4000.8000.153.60.781.291.80
VMPT-470470.00.5500.9001.1750.4000.8000.163.40.711.181.64
VMPT-560560.00.6001.0001.3000.4000.8000.193.70.841.401.94
VMPT-680680.00.6001.0001.3000.4000.8000.213.50.761.271.76
VMPT-820820.00.7001.2001.6000.5001.0000.164.70.831.381.91
VMPT-10001000.00.7001.2001.6000.5001.0000.184.40.751.251.73
VMPT-12001200.00.7251.4001.7500.5001.2000.204.70.841.401.95
VMPT-15001500.00.7251.4001.7750.5001.2000.224.50.751.251.74
VMPT-18001800.00.7251.4001.8000.5001.2000.254.30.691.141.59
DC
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.
H
W
L
A
B
VMPT-470
±.030
.220
YYWW
MADEINUSA
BACKVIEW
NC NC
DATECODE
LEADDIAMETERS
VMPT-1.8toVMPT-100:.020”
VMPT-120toVMPT-470:.025”
VMPT-560toVMPT-1800:.032”