U S Dept Of Transportation Federal Aviation Administration · Electronic Components
APS444
Transformer, Power
Part NumberAPS444
ManufacturerU S Dept Of Transportation Federal Aviation Administration
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-017-3044 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Body Width4.125 INCHES NOMINAL
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Power Rating248.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage31.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Height5.250 INCHES NOMINAL
Center To Center Distance Between3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Frequency Rating47.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current8.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Function And Quantity2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Vendor Part Numbers842109-1, 842109-0001
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 APS444 available?
We can source APS444 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 APS444 by U S Dept Of Transportation Federal Aviation Administration obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If APS444 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 APS444?
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 APS444?
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.