Lockheed Martin · Electronic Components
C20665-1
Attenuator, Variable
Part NumberC20665-1
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-449-5407 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Insertion Loss At Minimum Attenuat3.1
Unthreaded Mounting Hole Diameter0.125 INCHES NOMINAL
Frequency Range1.000 GIGAHERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM
Application DesignTRANSMISSION LINE
Adjustment Device Type And Quantit1 ELECTRONIC, VOLTAGE CONTROLLED
Power Rating100.0 MILLIWATTS AVERAGE AND 60.0 WATTS PEAK
Body StyleCOAXIAL TYPE
Impedance Rating In Ohms50.0 INPUT-OUTPUT
Terminal Type And Quantity1 CONNECTOR, RECEPTACLE AND 2 CONNECTOR, COAXIAL, FEMALE
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Attenuation Variation MethodCONTINUOUS
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is C20665-1 available?
We can source C20665-1 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is C20665-1 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C20665-1 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like C20665-1?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for C20665-1?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.