● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Thordarson Inc.  · Electronic Components

21F82

Transformer, Power

Part Number21F82
ManufacturerThordarson Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Winding Operating Voltage117.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Distance Between Mounting Facility2.812 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Criticality Code JustificationFEAT
Body Width2.000 INCHES NOMINAL
Terminal Type And Quantity5 WIRE LEAD
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Power Rating26.8 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
Body Height1.938 INCHES NOMINAL
Inclosure TypePARTIALLY INCLOSED
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP
Vendor Part Numbers4002654, 778-241, 703010-101
Cancelled NSN5950-00-732-4245 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
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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

Frequently asked

Is 21F82 available?
We can source 21F82 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 21F82 by Thordarson Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21F82 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 21F82?
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 21F82?
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.