Rockwell Collins · Electronic Components
278-0391-020
Transformer, Radio Frequency
Part Number278-0391-020
ManufacturerRockwell Collins
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-108-8205 (NSN)
Federal Item NameTRANSFORMER,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Body Length0.335 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
Maximum Operating Temp105.0 CELSIUS
Terminal Type And Quantity6 WIRE LEAD
Coil Form TypeSOLID SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
Inductance Rating3.40 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeHERMETICALLY SEALED
Frequency Rating55.0 KILOHERTZ MINIMUM AND 3.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Outside Diameter0.270 INCHES MINIMUM AND 0.285 INCHES MAXIMUM
Reliability IndicatorNOT ESTABLISHED
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 278-0391-020 available?
We can source 278-0391-020 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 278-0391-020 by Rockwell Collins obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 278-0391-020 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 278-0391-020?
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 278-0391-020?
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.