Ribbon Communications Federal Inc. · Electronic Components
4120A
Circuit Card Assembly
Part Number4120A
ManufacturerRibbon Communications Federal Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5998-01-506-8732 (NSN)
Federal Item NameCIRCUIT CARD ASSEMBLY
Federal Supply Class5998 — Circuit Card Assemblies
Vendor Part Numbers99002A8007-25
ESD/EMICode A — ESD/EMI sensitive item
Overall Length5.290 INCHES NOMINAL
General Characteristics Item DescrMOUNTED BY 4 0.130 IN DIA SLOTS FOR NO. 6 SCREWS; 10.0 TO 200.0 MHZ; 1290.0 NM MIN, 1340.0 NM MAX WAVELENGTH ; 1.0MW OPT
Overall Width2.880 INCHES NOMINAL
Overall Height1.410 INCHES NOMINAL
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 4120A available?
We can source 4120A 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 4120A by Ribbon Communications Federal Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4120A 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 4120A?
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 4120A?
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.