Cinch Connectivity Solutions · Electronic Components
451-3
Attenuator, Fixed
Part Number451-3
ManufacturerCinch Connectivity Solutions
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-413-9935 (NSN)
Federal Item NameATTENUATOR,FIXED
Federal Supply Class5985 — Antennas and Waveguides
Output Impedance Rating In Ohms50.0
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Power Rating2.0 WATTS AVERAGE AND 250.0 WATTS PEAK
Operating Temp Range-65.0 TO 125.0 CELSIUS
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Input Impedance Rating In Ohms50.0
Terminal Type And Quantity2 CONNECTOR
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio Freque+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 18.0 GIGAHERTZ
Voltage Standing Wave Ratio1.12 AND 1.15 AND 1.20
Coaxial Connector Series DesignatiSMA
Vendor Part Numbers995580-003
ESD/EMICode A — ESD/EMI sensitive item
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 451-3 available?
We can source 451-3 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 451-3 by Cinch Connectivity Solutions obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 451-3 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 451-3?
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 451-3?
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.