● 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
Freed Transformer  · Electronic Components

37557

Reactor — Coils and Transformers

Part Number37557
ManufacturerFreed Transformer
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Center To Center Distance Between1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Terminal Type And Quantity2 TAB, SOLDER LUG
Winding Operating Current200.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Quantity1 SINGLE COMPONENT
Inductance Rating250.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Vendor Part Numbers668-0464-010
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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 37557 available?
We can source 37557 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 37557 by Freed Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 37557 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 37557?
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 37557?
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.