Cinch Connectivity Solutions Inc. · Electronic Components
290-2
Attenuator, Fixed
Part Number290-2
ManufacturerCinch Connectivity Solutions Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-052-0784 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Power Rating2.0 WATTS AVERAGE2.0 WATTS AVERAGE
Attenuation Accuracy Reference Fre18.0 GIGAHERTZ18.0 GIGAHERTZ
Rf Signal Attenuation In Decibels2.02.0
Operating Temp Range-65.0 TO 125.0 CELSIUS-65.0 TO 125.0 CELSIUS
MaterialSTEEL CORROSION RESISTING BODY
Frequency Range0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
Coaxial Connector Series DesignatiSMASMA
Attenuation Accuracy In Decibels-0.30 TO 0.30-0.30 TO 0.30
Mounting MethodCONNECTORCONNECTOR
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Voltage Standing Wave Ratio Freque+0.0 TO 18.0 GIGAHERTZ+0.0 TO 18.0 GIGAHERTZ
Vendor Part NumbersMDC900342, 570997-023, 50HF-002-SMU, 5L.5177.002.28, 5L.5177.002.40
Cancelled NSN5985-01-215-2206 (cancelled)
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 290-2 available?
We can source 290-2 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 290-2 by Cinch Connectivity Solutions Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 290-2 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 290-2?
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 290-2?
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.