American Precision Industries Inc. · Electronic Components
4500-78
Coil, Radio Frequency
Part Number4500-78
ManufacturerAmerican Precision Industries Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-730-0471 (NSN)
Federal Item NameCOIL,RADIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Turn Quantity679 SINGLE COMPONENT SINGLE WINDING
Terminal Type And Quantity2 WIRE LEAD
Body Outside Diameter0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
Body Length0.794 INCHES MINIMUM AND 0.856 INCHES MAXIMUM
Mounting MethodTERMINAL SINGLE GROUP
Coil Form TypeSOLID SINGLE COMPONENT
Dc Resistance Rating In Ohms34.500 SINGLE COMPONENT SINGLE WINDING
Core ConstructionS0LID SINGLE COMPONENT
Winding Conductor Size0.00445 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING
Maximum Operating Temp105.0 CELSIUS
Winding Operating Current180.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Vendor Part Numbers7722350P40
Resistance Tolerance In Percent-5.000 TO 5.000
Terminal Length1.500 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeENCAPSULATED
Ambient Temp In Deg Celsius At Zer340.0
Body Diameter0.312 INCHES NOMINAL
Power Dissipation Rating In Watts12.000 FREE AIR
Ambient Temp At Full Rated Power40.0 CELSIUS
Terminal TypeWIRE LEAD
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 4500-78 available?
We can source 4500-78 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 4500-78 by American Precision Industries Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4500-78 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 4500-78?
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 4500-78?
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.