William Spencer · Electronic Components
4900-7
Transformer, Current
Part Number4900-7
ManufacturerWilliam Spencer
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-284-5058 (NSN)
Federal Item NameTRANSFORMER,CURRENT
Federal Supply Class5950 — Coils and Transformers
Mounting Hole Diameter0.194 INCHES NOMINAL SINGLE GROUP
Overall Height3.125 INCHES NOMINAL
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Maximum Operating Temp160.0 CELSIUS
Winding Operating Current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Terminal Type And Quantity2 TAB, SOLDER LUG
Winding Operating Voltage115.00 AC VOLTS MINIMUM AND 200.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Overall Width2.500 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
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 4900-7 available?
We can source 4900-7 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 4900-7 by William Spencer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4900-7 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 4900-7?
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 4900-7?
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.