Thordarson Inc. · Electronic Components
20C66
Reactor — Coils and Transformers
Part Number20C66
ManufacturerThordarson Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-553-4166 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Inclosure TypeFULLY INCLOSED
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Dc Resistance Rating In Ohms500.000 SINGLE COMPONENT SINGLE WINDING
Distance Between Mounting Facility2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Terminal Type And Quantity2 WIRE LEAD
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Winding Quantity1 SINGLE COMPONENT
Inductance TypeFIXED
Overall Height1.625 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Overall Length2.812 INCHES NOMINAL
Vendor Part NumbersC-3X
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 20C66 available?
We can source 20C66 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 20C66 by Thordarson Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 20C66 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 20C66?
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 20C66?
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.