Cinch Connectivity Solutions Inc. · Electronic Components
290-3-021
Attenuator, Fixed
Part Number290-3-021
ManufacturerCinch Connectivity Solutions Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-215-3443 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Application DesignTRANSMISSION LINE
Attenuation Accuracy In Decibels-0.30 TO 0.30
Power Rating2.0 WATTS AVERAGE
Voltage Standing Wave Ratio1.15 AND 1.35
Overall Length0.840 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
Output Impedance Rating In Ohms50.0
Input Impedance Rating In Ohms50.0
Rf Signal Attenuation In Decibels3.0
Voltage Standing Wave Ratio Freque+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Operating Temp Range-40.0 TO 80.0 CELSIUS
Vendor Part Numbers1041815-15
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 290-3-021 available?
We can source 290-3-021 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 290-3-021 by Cinch Connectivity Solutions Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 290-3-021 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 290-3-021?
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 290-3-021?
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.