Baltimore Transformer · Electronic Components
BX491
Transformer, Audio Frequency
Part NumberBX491
ManufacturerBaltimore Transformer
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-594-7971 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Overall Length2.687 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current0.04 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Transformer FunctionOUTPUT
Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE GROUP
Maximum Transformer Power Rating10.0 WATTS SINGLE COMPONENT
Center To Center Distance Between2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Impedance Rating In Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Body Height3.250 INCHES NOMINAL
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 BX491 available?
We can source BX491 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 BX491 by Baltimore Transformer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BX491 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 BX491?
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 BX491?
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.