Freed Transformer · Electronic Components
43390
Transformer, Audio Frequency
Part Number43390
ManufacturerFreed Transformer
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-210-7225 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Body Width0.560 INCHES MAXIMUM
Body Height0.680 INCHES MAXIMUM
Frequency Rating1.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Overall Length0.312 INCHES NOMINAL
Terminal Type And Quantity5 PIN
Nominal Thread Size0.112 INCHES SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Distance Between Mounting Facility0.740 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Vendor Part Numbers1128EDC127
Contact Position Arrangement StyleN SECOND MATING END
Precious MaterialGOLD
Precious Material And LocationCONTACT SURFACES GOLD
Shell Surface TreatmentNICKEL
Contact Surface TreatmentGOLD ALL MATING ENDS ALL CONTACT GROUPINGS
Body StyleSTRAIGHT SHAPE, EXTERNAL/INTERNAL COUPLING
Mating End Quantity2
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 43390 available?
We can source 43390 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 43390 by Freed Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 43390 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 43390?
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 43390?
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.