Sector Microwave Industries · Electronic Components
SMS-185
Switch, Waveguide
Part NumberSMS-185
ManufacturerSector Microwave Industries
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-205-1915 (NSN)
Federal Item NameSWITCH,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Overall Height4.875 INCHES NOMINAL
Minimum Crosstalk Rating In Decibe70.0 SINGLE
Actuator Voltage In Volts28.0 NOMINAL
Switch Return Mechanism TypeLATCHING
Switching Time1.0 SECONDS
Rf Power Handling Capability50.0 KILOWATTS AVERAGE SECOND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) MOUNTING FACILITY HOLE
Actuator Operating MethodMOTOR
Nominal Thread Size0.250 INCHES FLANGE CONNECTION FACILITY HOLE
Waveguide Flange TypeCHOKE
Flange Connecting Facility And Qua10 THREADED HOLE(S)
Vendor Part Numbers390429
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 SMS-185 available?
We can source SMS-185 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 SMS-185 by Sector Microwave Industries obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SMS-185 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 SMS-185?
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 SMS-185?
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.