Lucent Technologies Inc. Corporate Headquarters · Electronic Components
12743-2
Reactor — Coils and Transformers
Part Number12743-2
ManufacturerLucent Technologies Inc. Corporate Headquarters
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-686-8976 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeOPEN
Dc Resistance Rating In Ohms79.000 SINGLE COMPONENT SINGLE WINDING
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Body Height1.156 INCHES MAXIMUM
Terminal Type And Quantity2 TAB, SOLDER LUG
Body Width0.843 INCHES MAXIMUM
Inductance Rating400.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Inductance TypeFIXED
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Mounting Hole Diameter0.128 INCHES NOMINAL SINGLE GROUP
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 12743-2 available?
We can source 12743-2 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 12743-2 by Lucent Technologies Inc. Corporate Headquarters obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 12743-2 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 12743-2?
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 12743-2?
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.