Magnetika Inc. · Electronic Components
D0T21
Transformer, Audio Frequency
Part NumberD0T21
ManufacturerMagnetika Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-802-9009 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Frequency Rating1.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Terminal Type And Quantity5 WIRE LEAD
Impedance Rating In Ohms900.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTERMINAL SINGLE GROUP
Primary To Secondary Turn Ratio1 TO 22 SINGLE COMPONENT
Maximum Operating Temp85.0 CELSIUS
Body Length0.406 INCHES NOMINAL
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Body Outside Diameter0.312 INCHES NOMINAL
Maximum Transformer Power Rating500.0 MILLIWATTS SINGLE COMPONENT
Vendor Part Numbers1783709-21, 1621, MIT221, MII221, 1489252-1
Cancelled NSN5950-00-856-3294 (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 D0T21 available?
We can source D0T21 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 D0T21 by Magnetika Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D0T21 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 D0T21?
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 D0T21?
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.