Espey Mfg. & Electronics · Electronic Components
SP-157-C
Reactor — Coils and Transformers
Part NumberSP-157-C
ManufacturerEspey Mfg. & Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-135-1273 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Inductance TypeFIXED
Terminal Type And Quantity2 STANDOFF, THREADED STUD
Maximum Operating Temp155.0 CELSIUS
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current63.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Height7.810 INCHES NOMINAL
Inductance Rating1.20 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Thread Quantity Per Inch20 SINGLE GROUP
Body Length5.500 INCHES NOMINAL
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Vendor Part Numbers5328558
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 SP-157-C available?
We can source SP-157-C 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 SP-157-C by Espey Mfg. & Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SP-157-C 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 SP-157-C?
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 SP-157-C?
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.