Microwave Engineering · Electronic Components
C390-188
Antenna — Antennas and Waveguides
Part NumberC390-188
ManufacturerMicrowave Engineering
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-126-2099 (NSN)
Federal Item NameANTENNA
Federal Supply Class5985 — Antennas and Waveguides
Overall Length2.120 INCHES NOMINAL
Radiation PatternOMNIDIRECTIONAL SINGLE ANTENNA ELEMENT
Terminal TypeCONNECTOR, RECEPTACLE SINGLE ANTENNA ELEMENT
Mounting MethodUNTHREADED HOLE(S)
Overall Diameter3.030 INCHES NOMINAL
Design TypeSPIRAL SINGLE ANTENNA ELEMENT
Beam Scanning MethodFIXED SINGLE ANTENNA ELEMENT
Mounting Hole Quantity4
Vendor Part NumbersSM-A-877051-1, SM-A-877051-1 REV M
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 C390-188 available?
We can source C390-188 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 C390-188 by Microwave Engineering obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C390-188 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 C390-188?
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 C390-188?
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.