Captor · Electronic Components
A-4581
Filter, Radio Frequency Interfere
Part NumberA-4581
ManufacturerCaptor
AvailabilityAvailable to order — request a quote
Specifications
NSN5915-01-292-3367 (NSN)
Federal Item NameFILTER,RADIO FREQUENCY INTERFERE
Federal Supply Class5915 — Filters and Networks
Operating Voltage Rating And Type220.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Current Rating Per Funct1.5 1ST RADIO INTERFERENCE FIRST FUNCTION
Body MaterialMETAL
Overall Length2.720 INCHES MINIMUM AND 2.780 INCHES MAXIMUM
Load Impedance Per Function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Source Impedance Rating Per Functi50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Principal Circuitry Type Per FunctINDUCTANCE-CAPACITANCE 1ST RADIO INTERFERENCE FIRST FUNCTION
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Distance Between Centerlines Of Mo2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM
Body Length1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
Body Width1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
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 A-4581 available?
We can source A-4581 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 A-4581 by Captor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A-4581 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 A-4581?
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 A-4581?
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.