Tranex, Inc. · Electronic Components
4-1681
Transformer, Power
Part Number4-1681
ManufacturerTranex, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-222-7749 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center To Center Distance Between1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Frequency Rating50.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting MethodSLOT SINGLE GROUP
Body Width2.630 INCHES MAXIMUM
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current261.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Winding Shielding MethodINTERNALLY SHIELDED SINGLE COMPONENT
Winding Power Rating30.0 VOLTS-AMPERES SINGLE COMPONENT FIRST SECONDARY
Winding Function And Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
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 4-1681 available?
We can source 4-1681 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 4-1681 by Tranex, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4-1681 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 4-1681?
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 4-1681?
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.