Dietz Design · Electronic Components
1203
Transformer, Audio Frequency
Part Number1203
ManufacturerDietz Design
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-647-6993 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Thread Quantity Per Inch32 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Frequency Rating300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Primary To Secondary Turn Ratio1 TO 4-1/10 SINGLE COMPONENT
Center To Center Distance Between1.016 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Winding Operating Current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Terminal Type And Quantity4 STANDOFF, SOLDER LUG
Body Height2.125 INCHES NOMINAL
Inclosure TypeHERMETICALLY SEALED
Vendor Part NumbersAU7977
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 1203 available?
We can source 1203 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 1203 by Dietz Design obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1203 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 1203?
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 1203?
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.