Tamura · Electronic Components
3FD-528
TRANSFORMER DUAL 14VAC .840A
Part Number3FD-528
ManufacturerTamura
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-533-5589 (NSN)
Federal Item NameTRANSFORMER,POWER
Terminals8 PIN
Overall Length1.875 INCHES NOMINAL
Overall Width1.562 INCHES NOMINAL
Special Features12VA, PARALLEL: 14V @840MA; SERIES: 28V CT @420MA; 4 CORNER MTG HOLES ON 2.187" X 1.750" CENTERS
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Height1.437 INCHES NOMINAL
Inclosure TypeOPEN
Winding Operating Voltage115.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Federal Supply Class5950 — Coils And Transformers
Terminal Type And Quantity8 PIN
Vendor Part NumbersPSD5-28, SPW-605-D, 662-6203-020
ESD/EMICode A — ESD/EMI sensitive item
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 3FD-528 available?
We can source 3FD-528 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 3FD-528 by Tamura obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3FD-528 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 3FD-528?
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 3FD-528?
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.