Keysight Technologies Inc. · Electronic Components
3581A
Analyzer, Spectrum
Part Number3581A
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-01-012-7669 (NSN)
Federal Item NameANALYZER,SPECTRUM
Federal Supply Class6625 — Test Instruments
Frequency Range Rating+0.015 TO 50.000 KILOHERTZ
Recording Device TypeX-Y RECORDER
Frequency Rating48.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM
Overall Length16.250 INCHES NOMINAL
Relationship To Similar EquipmentSIMILAR TO FSCM 28480 PN 302A,FSCM 13048 PN 2449,FSCM 80058 PN TS-1830/U
Overall Width11.250 INCHES NOMINAL
Overall Height8.000 INCHES NOMINAL
Ac Voltage Rating90.0 VOLTS MINIMUM AND 252.0 VOLTS MAXIMUM
Mounting MethodBENCH
Input Impedance Rating1.0 MEGOHMS NOMINAL
Functional ClassificationAA-3.3
Vendor Part NumbersTS5432
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 3581A available?
We can source 3581A 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 3581A by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3581A 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 3581A?
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 3581A?
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.