Cmc Electronics Inc. · Electronic Components
456-278
Oscillator, Crystal Controlled
Part Number456-278
ManufacturerCmc Electronics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5963-00-014-4240 (NSN)
Federal Item NameOSCILLATOR,CRYSTAL CONTROLLED
Federal Supply Class5963 — Electronic Modules
External Dc Operating Voltage In V4.0 NOMINAL SINGLE VOLTAGE AND -12.0 NOMINAL SINGLE VOLTAGE AND 12.0 NOMINAL SINGLE VOLTAGE AND 16.0 NOMINAL SINGLE VOLT
FSC Application DataRECEIVER,RADIO,EXCEPT NAVIGATION,NONAIRBORNE
Frequency Per Channel333.0 KILOHERTZ MINIMUM OPERATING CHANNEL AND 500.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
Basic Shape StyleRECTANGULAR OR SQUARE
Circuit Construction TypeSOLID STATE
Average Life MeasurementNOT RATED
Identification Designator456278-90073
Overall Height0.439 INCHES NOMINAL
Overall Width3.375 INCHES NOMINAL
Overall Length3.400 INCHES NOMINAL
Vendor Part NumbersSM-D-698163
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 456-278 available?
We can source 456-278 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 456-278 by Cmc Electronics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 456-278 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 456-278?
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 456-278?
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.