Shure Bros Inc. · Electronic Components
540SH
Microphone, Dynamic
Part Number540SH
ManufacturerShure Bros Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-899-0453 (NSN)
Federal Item NameMICROPHONE,DYNAMIC
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Height2.125 INCHES NOMINAL
Accessory ComponentsCONNECTOR
Impedance Rating30.0 OHMS NOMINAL AND 50.0 OHMS NOMINAL
Cable Conductor Quantity2
Frequency Response Range In Hertz+60.0 TO 10000.0
Polarity ConnectionNOT REQUIRED
Electrical Connection TypeINTEGRAL CABLE
Mounting MethodTHREADED BUSHING
Length5.187 INCHES NOMINAL
Width3.125 INCHES NOMINAL
Sound Pickup Directional TypeSEMIDIRECTIONAL
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 540SH available?
We can source 540SH 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 540SH by Shure Bros Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 540SH 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 540SH?
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 540SH?
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.