Bycap Inc. · Electronic Components
RFI-121
Filter, Radio Frequency Interfere
Part NumberRFI-121
ManufacturerBycap Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5915-00-501-4558 (NSN)
Federal Item NameFILTER,RADIO FREQUENCY INTERFERE
Federal Supply Class5915 — Filters and Networks
Distance Between Centerlines Of Mo5.125 INCHES NOMINAL
Body Length4.156 INCHES NOMINAL
Body Height3.000 INCHES NOMINAL
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
Power Line Frequency Rating Per Fu60.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Maximum Dielectric Withstanding Dc500.0 VOLTS AT SEA LEVEL
Operating Voltage Rating And Type250.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION
Maximum Voltage Drop Per Function1.2 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION
Load Impedance Per Function50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Operating Current Rating Per Funct25.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Source Impedance Rating Per Functi50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Cancelled NSN5915-00-694-6414 (cancelled)
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 RFI-121 available?
We can source RFI-121 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 RFI-121 by Bycap Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RFI-121 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 RFI-121?
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 RFI-121?
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.