MTK Electronics · Electronic Components
A891
Filter, Radio Frequency Interfere
Part NumberA891
ManufacturerMTK Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5915-00-556-2189 (NSN)
Federal Item NameFILTER,RADIO FREQUENCY INTERFERE
Federal Supply Class5915 — Filters and Networks
Operating Voltage Rating And Type115.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Source Impedance Rating Per Functi50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Power Line Frequency Rating Per Fu400.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Current Rating Per Funct4.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Load Impedance Per Function50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Inclosure TypeHERMETICALLY SEALED
Body MaterialMETAL
Functional Terminal Type And Quant2 WIRE HOOK OUTPUT SECOND FUNCTION
Principal Circuitry Type Per FunctINDUCTANCE-CAPACITANCE 2ND RADIO INTERFERENCE SECOND FUNCTION
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON ADJACENT SURFACES
Vendor Part NumbersFA4220
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 A891 available?
We can source A891 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 A891 by MTK Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A891 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 A891?
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 A891?
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.