General Microwave · Electronic Components
3458-389
Attenuator, Fixed
Part Number3458-389
ManufacturerGeneral Microwave
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-239-4510 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Overall Height2.000 INCHES NOMINAL
Mounting MethodUNTHREADED HOLE(S)
Overall Width0.800 INCHES NOMINAL
Overall Length3.750 INCHES NOMINAL
Frequency Range6.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio Freque+6.0 TO 16.0 GIGAHERTZ AND +16.0 TO 18.0 GIGAHERTZ
Body StyleRECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES
Mounting Hole Stud Quantity4
Voltage Standing Wave Ratio1.80 AND 2.00
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 3458-389 available?
We can source 3458-389 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 3458-389 by General Microwave obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3458-389 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 3458-389?
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 3458-389?
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.