● 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
Staco Energy Products Co  · Electronic Components

100BU

Transformer, Power Autotransforme

Part Number100BU
ManufacturerStaco Energy Products Co
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,POWER AUTOTRANSFORME
Federal Supply Class5950 — Coils and Transformers
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Thread Series DesignatorUNEF SINGLE GROUP
Winding Operating Voltage120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Overall Diameter2.812 INCHES NOMINAL
Mounting Facility Quantity1 SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY, VARIABLE AUTOTRANSFORMER TYPE SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Overall Length2.094 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Cancelled NSN5950-00-471-8396 (cancelled)
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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 100BU available?
We can source 100BU 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 100BU by Staco Energy Products Co obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 100BU 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 100BU?
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 100BU?
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.