Instrument Transformers Inc. · Electronic Components
5SFT-251
Transformer, Current
Part Number5SFT-251
ManufacturerInstrument Transformers Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-247-3048 (NSN)
Federal Item NameTRANSFORMER,CURRENT
Federal Supply Class5950 — Coils and Transformers
Overall Height4.070 INCHES NOMINAL
Maximum Transformer Power Rating12.5 VOLT-AMPERE SINGLE COMPONENT
Mounting Slot Width0.210 INCHES NOMINAL SINGLE GROUP
Center To Center Distance Between1.790 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Mounting MethodSLOT SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Terminal Type And Quantity2 THREADED STUD
Winding Operating Current250.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Overall Length3.500 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Vendor Part Numbers805-943U-RSLS
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 5SFT-251 available?
We can source 5SFT-251 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 5SFT-251 by Instrument Transformers Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5SFT-251 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 5SFT-251?
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 5SFT-251?
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.