Keysight Technologies · Electronic Components
E4421B
Generator, Signal
Part NumberE4421B
ManufacturerKeysight Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-01-471-5154 (NSN)
Federal Item NameGENERATOR,SIGNAL
Federal Supply Class6625 — Test Instruments
Overall Length17.000 INCHES NOMINAL
Modulation TypeAM AND FM AND PULSE AND SINGLE SIDE BAND AND SQUARE WAVE
Mounting TypeRACK
Modulator LocationINTERNAL
Frequency Band Quantity3
Frequency Range Rating+0.250 TO 3000.000 MEGAHERTZ
Overall Height5.250 INCHES NOMINAL
Overall Width16.800 INCHES NOMINAL
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM
Functional DescriptionFLEXIBLE ARCHITECTURE, UPGRADE PATHS FOR OPTIONS, AND DIGITAL. ELECTRONIC ATTENUATOR, SUPERIOR LEVEL ACCURACY, WIDEBAND
Voltage Rating90.0 VOLTS MINIMUM AND 254.0 VOLTS MAXIMUM
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 E4421B available?
We can source E4421B 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 E4421B by Keysight Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If E4421B 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 E4421B?
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 E4421B?
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.