Superior Electric Holding Group · Electronic Components
TYPE21
Transformer, Power Autotransforme
Part NumberTYPE21
ManufacturerSuperior Electric Holding Group
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-051-8296 (NSN)
Federal Item NameTRANSFORMER,POWER AUTOTRANSFORME
Federal Supply Class5950 — Coils and Transformers
Center To Center Distance Between3.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Winding Function And Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Winding Operating Voltage0.00 AC VOLTS MINIMUM AND 120.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Inclosure TypePARTIALLY INCLOSED, HALF SHELL
Winding Operating Current5.5 AMPERES AC MAXIMUM AND 3.8 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Terminal Type And Quantity4 TAB, SOLDER LUG
Body Width3.750 INCHES NOMINAL
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Power Rating660.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Cancelled NSN5950-00-439-5315 (cancelled)
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnUnknown
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 TYPE21 available?
We can source TYPE21 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 TYPE21 by Superior Electric Holding Group obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TYPE21 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 TYPE21?
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 TYPE21?
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.