Berkshire Transformer · Electronic Components
2277B
Reactor — Coils and Transformers
Part Number2277B
ManufacturerBerkshire Transformer
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-556-1635 (NSN)
Federal Item NameREACTOR
Federal Supply Class5950 — Coils and Transformers
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE GROUP
Winding Operating Current125.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inductance TypeFIXED
Overall Height3.375 INCHES NOMINAL
Dc Resistance Rating In Ohms250.000 SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width2.125 INCHES NOMINAL
Terminal Type And Quantity2 WIRE LEAD
Body Length2.250 INCHES NOMINAL
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 2277B available?
We can source 2277B 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 2277B by Berkshire Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 2277B 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 2277B?
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 2277B?
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.