Electronic Transformer Corp. · Electronic Components
T251
Transformer, Audio Frequency
Part NumberT251
ManufacturerElectronic Transformer Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-645-5207 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Impedance Rating In Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center To Center Distance Between1.812 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Mounting Hole Diameter0.169 INCHES NOMINAL SINGLE GROUP
Maximum Transformer Power Rating1.0 WATTS SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Body Width2.375 INCHES NOMINAL
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity8 SINGLE GROUP
Terminal Type And Quantity4 TAB, SOLDER LUG
Body Length2.750 INCHES NOMINAL
Cancelled NSN5950-00-232-4719 (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 T251 available?
We can source T251 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 T251 by Electronic Transformer Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If T251 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 T251?
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 T251?
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.