Howell Laboratories Inc. · Electronic Components
3789-2
Transformer, Power
Part Number3789-2
ManufacturerHowell Laboratories Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-470-1399 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Distance Between Mounting Facility5.375 INCHES NOMINAL AND 3.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Body Height4.625 INCHES NOMINAL
Body Length7.500 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Winding Power Rating1.5 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current6.3 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Slot Width0.281 INCHES NOMINAL SINGLE GROUP
Body Width5.625 INCHES NOMINAL
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnEAR99
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 3789-2 available?
We can source 3789-2 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 3789-2 by Howell Laboratories Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3789-2 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 3789-2?
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 3789-2?
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.