● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Magnetic Components Inc.  · Electronic Components

WM-4250

Transformer, Power

Part NumberWM-4250
ManufacturerMagnetic Components Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center To Center Distance Between2.883 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Inclosure TypeOPEN
Body Width3.444 INCHES NOMINAL
Mounting Hole Diameter0.202 INCHES NOMINAL SINGLE GROUP
Body Length4.501 INCHES NOMINAL
Body Height2.145 INCHES NOMINAL
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type And Quantity14 TAB, SOLDER LUG
Reliability IndicatorNOT ESTABLISHED
Vendor Part Numbers1049319
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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

Frequently asked

Is WM-4250 available?
We can source WM-4250 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-4250 by Magnetic Components Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If WM-4250 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-4250?
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-4250?
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.