Lockheed Martin · Electronic Components
77C721837P1
Transformer, Power
Part Number77C721837P1
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-294-9559 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Body Length8.000 INCHES MAXIMUM
Body Width5.880 INCHES MAXIMUM
Winding Function And Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Mounting MethodSLOT SINGLE GROUP
Winding Operating Voltage20.80 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Center To Center Distance Between4.563 INCHES MINIMUM AND 4.687 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Transformer Winding Connection TypDELTA-WYE AND DELTA-DELTA
Winding Operating Current9.8 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type And Quantity17 TAB, SOLDER LUG
Body Height6.750 INCHES MAXIMUM
Vendor Part Numbers77C721837P001
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 77C721837P1 available?
We can source 77C721837P1 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 77C721837P1 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 77C721837P1 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 77C721837P1?
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 77C721837P1?
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.