Magnetic Components Inc. · Electronic Components
WM-3666
Transformer, Power
Part NumberWM-3666
ManufacturerMagnetic Components Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-649-9070 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Body Height3.250 INCHES MAXIMUM
Overall Height3.593 INCHES MAXIMUM
Body Width1.875 INCHES MAXIMUM
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Center To Center Distance Between1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Current250.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP
Body Length1.875 INCHES MAXIMUM
Vendor Part Numbers722899-263
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 WM-3666 available?
We can source WM-3666 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 WM-3666 by Magnetic Components Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If WM-3666 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 WM-3666?
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 WM-3666?
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.