United Transformer Corp. Sub Of Opt Industries Inc. · Electronic Components
JS-812
Transformer, Power
Part NumberJS-812
ManufacturerUnited Transformer Corp. Sub Of Opt Industries Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-831-3180 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Distance Between Mounting Facility0.766 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Body Height1.000 INCHES NOMINAL
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
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 JS-812 available?
We can source JS-812 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 JS-812 by United Transformer Corp. Sub Of Opt Industries Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If JS-812 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 JS-812?
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 JS-812?
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.