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Radio Frequency Interfere Filter

Model / MPN: F1780DD20 | NSN: 5915-01-339-9644
ITAR Registered seal

An item designed to suppress undesired (interfering) frequencies and have a minimal effect on the desired frequencies when inserted in an electrical power circuit. Excludes items which consist of a single capacitor, inductor, resistor, or devices consisting of only two or more circuit elements of the same basic name. Excludes filter, low pass and suppressor, ignition interference. For items designed to be inserted in a line which is primarily intended to carry high frequency waves modulated with signals, such as antenna lead-in, see filter, band suppression and filter, band pass. See also limiter, electrical noise.

Product Details
NATO Stock Number
5915-01-339-9644
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Overall Length
4.140 inches
Overall Height
1.520 inches
Overall Width
5.075 inches
Mounting Slot Width
0.156 inches
Body Length
3.312 inches
Body Width
3.750 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
3.750 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
2.000 inches
Operating Tempurature Range
-55.0/+125.0 degrees celsius
Source Impedance Rating Per Function
50.0 ohms 1st radio interference50.0 ohms 2nd radio interference
Load Impedance Per Function
50.0 ohms 1st radio interference50.0 ohms 2nd radio interference
Power Line Frequency Rating Per Function In Hertz
60.0 1st radio interference60.0 2nd radio interference
Operating Current Rating Per Function In Amps
20.0 1st radio interference20.0 2nd radio interference
Maximum Voltage Drop Per Function
1.15 volts ac 1st radio interference1.15 volts ac 2nd radio interference
Principal Circuitry Type Per Function
Inductance-capacitance 1st radio interference inductance-capacitance 2nd radio interference
Maximum Tempurature Rise
40.0 degrees celsius
Full Load Insertion Loss Frequencies In Megahertz
0.15 and 0.5 and 1.0 and 5.0 and 10.0 and 30.0
Full Load Minimum Insertion Loss At Specificationified Frequency In Decibels
15.0 and 30.0 and 33.0 and 65.0 and 65.0 and 55.0
Inclosure Type
Encased
Mounting Facility Type And Quantity
4 slot
Features Provided
Nut and washer
Functional Terminal Type And Quantity
2 threaded stud input 1st function2 threaded stud output 2nd function1 threaded stud ground 3rd function
Operating Voltage Rating And Type Per Function
115.0 volts ac 1st radio interference 1st function115.0 volts ac 2nd radio interference 2nd function
Body Material
Metal
Maximum Dielectric Withstanding Dc Voltage
1.45 kilovolts at sea level
Style Designator
Rectangular terminal/terminals on opposite surfaces

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F1780DD20 Cross Reference