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Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
C280
Transformer, Audio Frequency
Part NumberC280
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-249-7360 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP
Center To Center Distance Between1.060 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Frequency Rating300.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Primary To Secondary Turn Ratio1 TO 2.5 TO 5.1 SINGLE COMPONENT
Impedance Rating In Ohms150.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Width1.875 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Terminal Type And Quantity7 TAB, SOLDER LUG
Winding Function And Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Length2.438 INCHES NOMINAL
Vendor Part Numbers200439-1-3
MaterialPLASTIC POLYESTER LOCATION NOT OTHERWISE SPECIFIED
ESD/EMICode A — ESD/EMI sensitive item
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 C280 available?
We can source C280 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 C280 by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If C280 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 C280?
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 C280?
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.