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Berkshire Transformer  · Electronic Components

BTC-12840

Transformer, Power

Part NumberBTC-12840
ManufacturerBerkshire Transformer
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE GROUP
Frequency Rating200.0 HERTZ MINIMUM AND 1200.0 HERTZ MAXIMUM SINGLE COMPONENT
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Distance Between Mounting Facility1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Terminal Type And Quantity4 TAB, SOLDER LUG
Winding Operating Voltage475.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Overall Width0.938 INCHES NOMINAL0.938 INCHES NOMINAL
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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 BTC-12840 available?
We can source BTC-12840 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 BTC-12840 by Berkshire Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BTC-12840 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 BTC-12840?
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 BTC-12840?
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.