Microwave Development Laboratories · Electronic Components
90TH549
Coupler, Directional
Part Number90TH549
ManufacturerMicrowave Development Laboratories
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-291-0702 (NSN)
Federal Item NameCOUPLER,DIRECTIONAL
Federal Supply Class5985 — Antennas and Waveguides
Design TypeBIDIRECTIONAL
Power Loss In Decibels20.0
Usage DesignMAIN LINE AND SECONDARY LINE TERMINAL FITTING
Terminal Fitting Controlling AgencDEPARTMENT OF DEFENSE
Overall Height2.872 INCHES NOMINAL
Overall Width2.980 INCHES NOMINAL
Overall Length4.442 INCHES NOMINAL
Unit TypeWAVEGUIDE
Identifying NumberTERMINAL FITTING PART NO. M3922/59-8; PART NO. M3922/53-3
Radio Frequency Rating8.65 GIGAHERTZ MINIMUM AND 11.00 GIGAHERTZ MAXIMUM
Vendor Part Numbers2920233
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 90TH549 available?
We can source 90TH549 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 90TH549 by Microwave Development Laboratories obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 90TH549 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 90TH549?
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 90TH549?
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.