William S Guttenberg · Electronic Components
SD377
Saturable Reactor
Part NumberSD377
ManufacturerWilliam S Guttenberg
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-583-1087 (NSN)
Federal Item NameSATURABLE REACTOR
Federal Supply Class5950 — Coils and Transformers
Overall Length5.000 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Dc Resistance Rating In Ohms0.150 SINGLE COMPONENT SECOND CONTROL
Nominal Thread Size0.250 INCHES SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Center To Center Distance Between4.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Overall Height7.437 INCHES NOMINAL
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Overall Width4.262 INCHES NOMINAL
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Thread Quantity Per Inch20 SINGLE GROUP
Vendor Part NumbersA36722
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 SD377 available?
We can source SD377 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 SD377 by William S Guttenberg obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SD377 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 SD377?
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 SD377?
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.