Acumen Electronics, Inc. · Electronic Components
F-21A
Transformer, Power
Part NumberF-21A
ManufacturerAcumen Electronics, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-645-8187 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Winding Operating Current10.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Center To Center Distance Between2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Body Width3.125 INCHES NOMINAL
Mounting Slot Width0.188 INCHES NOMINAL SINGLE GROUP
Body Height3.969 INCHES NOMINAL
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.969 INCHES NOMINAL
Terminal Type And Quantity5 WIRE LEAD
Cancelled NSN5950-00-567-2433 (cancelled)
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 F-21A available?
We can source F-21A 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 F-21A by Acumen Electronics, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If F-21A 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 F-21A?
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 F-21A?
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.