Keysight Technologies · Electronic Components
X421A
Detector, Radio Frequency
Part NumberX421A
ManufacturerKeysight Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-591-1659 (NSN)
Federal Item NameDETECTOR,RADIO FREQUENCY
Federal Supply Class6625 — Test Instruments
Basic Shape StyleCYLINDRICAL
Overall Length1.375 INCHES NOMINAL
Circuit Construction TypeSOLID STATE
Average Power Rating Per Channel100.0 WATTS INPUT
Vendor Part NumbersPC640900166-1
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 X421A available?
We can source X421A 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 X421A by Keysight Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If X421A 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 X421A?
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 X421A?
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.