Keysight Technologies Inc. · Electronic Components
E4403B
Analyzer, Spectrum
Part NumberE4403B
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-01-500-5426 (NSN)
Federal Item NameANALYZER,SPECTRUM
Federal Supply Class6625 — Test Instruments
Overall Height8.750 INCHES NOMINAL
Overall Depth20.300 INCHES NOMINAL
Overall Width16.400 INCHES NOMINAL
Frequency Range Rating+9.000 TO 999.999 KILOHERTZ AND +1.000 TO 999.999 MEGAHERTZ AND +1.000 TO 3.000 GIGAHERTZ
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 E4403B available?
We can source E4403B 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 E4403B by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If E4403B 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 E4403B?
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 E4403B?
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.