Cinch Connectivity Solutions · Electronic Components
ATT-0290-12-SMA-02
Attenuator, Fixed
Part NumberATT-0290-12-SMA-02
ManufacturerCinch Connectivity Solutions
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-209-9589 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Input Impedance Rating In Ohms50.0
Operating Temp Range-65.0 TO 125.0 CELSIUS
Attenuation Accuracy In Decibels-0.50 TO 0.50
Coaxial Connector Series DesignatiSMA
Voltage Standing Wave Ratio Freque+0.0 TO 18.0 GIGAHERTZ
Overall Length0.862 INCHES NOMINAL
Terminal Type And Quantity2 CONNECTOR
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Mounting MethodCONNECTOR
Voltage Standing Wave Ratio1.07
Vendor Part Numbers18A-12, 290-12DB, 18A-12DB, 570997-123, MDC90034-12
Cancelled NSN5985-01-204-4512 (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 ATT-0290-12-SMA-02 available?
We can source ATT-0290-12-SMA-02 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 ATT-0290-12-SMA-02 by Cinch Connectivity Solutions obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ATT-0290-12-SMA-02 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 ATT-0290-12-SMA-02?
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 ATT-0290-12-SMA-02?
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.