Rockwell Collins · Electronic Components
677-0300-201
Transformer, Audio Frequency
Part Number677-0300-201
ManufacturerRockwell Collins
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-503-8688 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Body Length0.578 INCHES MAXIMUM
Inclosure TypeFULLY INCLOSED
Impedance Rating In Ohms900.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating300.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type And Quantity5 WIRE LEAD
Maximum Transformer Power Rating500.0 MILLIWATTS SINGLE COMPONENT
Body Outside Diameter0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
Mounting MethodTERMINAL SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
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 677-0300-201 available?
We can source 677-0300-201 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 677-0300-201 by Rockwell Collins obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 677-0300-201 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 677-0300-201?
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 677-0300-201?
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.