Freed Transformer Co · Electronic Components
12405
Transformer, Audio Frequency
Part Number12405
ManufacturerFreed Transformer Co
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-239-9507 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Impedance Rating In Ohms100.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Transformer FunctionINPUT
Terminal Type And Quantity4 STANDOFF, SOLDER LUG
Frequency Rating100.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Center To Center Distance Between1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Primary To Secondary Turn Ratio1 TO 22.3 SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Body Width1.625 INCHES NOMINAL
Body Length1.875 INCHES NOMINAL
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP
Adjustment Method And Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Adjustment Device Drive TypeSHAFT SINGLE COMPONENT
Maximum Transformer Power Rating1.0 WATTS SINGLE COMPONENT
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
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 12405 available?
We can source 12405 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 12405 by Freed Transformer Co obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 12405 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 12405?
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 12405?
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.