B.C. Systems Inc. · Electronic Components
305A129
Transformer, Current
Part Number305A129
ManufacturerB.C. Systems Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-294-5788 (NSN)
Federal Item NameTRANSFORMER,CURRENT
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity1 SINGLE GROUP
Winding Operating Voltage20.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type And Quantity7 PIN
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.112 INCHES SINGLE GROUP
Winding Operating Current20.0 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Body Length0.590 INCHES MAXIMUM
Inclosure TypeFULLY INCLOSED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Outside Diameter0.875 INCHES MAXIMUM
Vendor Part Numbers5100-352
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 305A129 available?
We can source 305A129 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 305A129 by B.C. Systems Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 305A129 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 305A129?
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 305A129?
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.