Sikorsky Aircraft · Electronic Components
S1655-61777
Transformer, Power Autotransforme
Part NumberS1655-61777
ManufacturerSikorsky Aircraft
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-621-2204 (NSN)
Federal Item NameTRANSFORMER,POWER AUTOTRANSFORME
Federal Supply Class5950 — Coils and Transformers
Body Length1.250 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Mounting Facility Quantity2 SINGLE GROUP
Body Height1.250 INCHES NOMINAL
Distance Between Mounting Facility1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Winding Function And Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type And Quantity3 THREADED STUD
Winding Operating Voltage230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Vendor Part NumbersEN875
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 S1655-61777 available?
We can source S1655-61777 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 S1655-61777 by Sikorsky Aircraft obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S1655-61777 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 S1655-61777?
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 S1655-61777?
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.