Keysight Technologies Inc. · Electronic Components
355D-003
Attenuator, Variable
Part Number355D-003
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-437-6444 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Impedance Rating In Ohms50.0 INPUT-OUTPUT
Overall Attenuation Accuracy In De-3.00 TO 3.00
Power Rating500.0 MILLIWATTS AVERAGE
Overall Height3.750 INCHES NOMINAL
Mounting Facility Type And Quantit4 THREADED HOLE(S)
Center To Center Distance Between0.500 INCHES NOMINAL
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Frequency Range0.000 GIGAHERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM
Mounting Thread Quantity32 PER INCH
Body StyleCOAXIAL TYPE
Overall Attenuation Range In Decib+0.0 TO 120.0
Vendor Part Numbers990C799H02
Cancelled NSN5985-00-057-9914 (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 355D-003 available?
We can source 355D-003 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 355D-003 by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 355D-003 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 355D-003?
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 355D-003?
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.