General Electric · Electronic Components
T51J21-4
Reactor — Coils and Transformers
Part NumberT51J21-4
ManufacturerGeneral Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-645-1143 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Center To Center Distance Between1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Winding Operating Current70.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type And Quantity2 TAB, SOLDER LUG
Body Width3.062 INCHES NOMINAL
Inclosure TypeHERMETICALLY SEALED
Dc Resistance Rating In Ohms232.000 SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.164 INCHES SINGLE GROUP
Inductance TypeFIXED
Inductance Rating20.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Vendor Part Numbers394101PC4
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 T51J21-4 available?
We can source T51J21-4 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 T51J21-4 by General Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T51J21-4 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 T51J21-4?
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 T51J21-4?
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.