Keytronics, Inc. · Electronic Components
SJ501
Transformer, Power
Part NumberSJ501
ManufacturerKeytronics, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-909-5499 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Overall Height3.688 INCHES NOMINAL
Frequency Rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage9.05 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current1.1 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Nominal Thread Size0.164 INCHES SINGLE GROUP
Body Height3.219 INCHES NOMINAL
Winding Shielding MethodCORE GROUNDED AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Input Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Center To Center Distance Between1.781 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Transformer Winding Connection TypWYE-WYE
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 SJ501 available?
We can source SJ501 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 SJ501 by Keytronics, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SJ501 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 SJ501?
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 SJ501?
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.