Federal Signal International Fsc Ltd. · Electronic Components
120B125
Transformer, Audio Frequency
Part Number120B125
ManufacturerFederal Signal International Fsc Ltd.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-482-8728 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Body Width0.750 INCHES NOMINAL0.750 INCHES NOMINAL
Impedance Rating In Ohms20.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Hole Diameter0.172 INCHES NOMINAL SINGLE GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Frequency Rating300.0 HERTZ MINIMUM AND 300.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT3.0 KILOHERTZ MAXIMUM SINGLE COM
Body Length1.156 INCHES NOMINAL1.156 INCHES NOMINAL
Inclosure TypeOPEN
Mounting Facility Quantity2 SINGLE GROUP
Distance Between Mounting Facility1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Terminal Type And Quantity5 WIRE LEAD5 WIRE LEAD
Vendor Part Numbers120-118
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 120B125 available?
We can source 120B125 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 120B125 by Federal Signal International Fsc Ltd. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 120B125 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 120B125?
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 120B125?
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.