Naval Sea Systems Command · Electronic Components
5543178
Attenuator, Fixed
Part Number5543178
ManufacturerNaval Sea Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-265-8137 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Output Impedance Rating In Ohms50.0
Frequency Sensitivity Attenuation0.005
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Operating Temp Range-55.0 TO 125.0 CELSIUS
Attenuation Accuracy Reference Fre18.0 GIGAHERTZ
Voltage Standing Wave Ratio1.15 AND 1.20 AND 1.25 AND 1.35
Input Impedance Rating In Ohms50.0
Coaxial Connector Series DesignatiSMA
Temperature Sensitivity Attenuatio0.0006
Attenuation Accuracy In Decibels-0.70 TO 0.70
Vendor Part NumbersWA4-20, MDC890485, 50MP20-1380
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 5543178 available?
We can source 5543178 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 5543178 by Naval Sea Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5543178 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 5543178?
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 5543178?
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.