Q-Tech · Electronic Components
MCM-684
Oscillator, Crystal Controlled
Part NumberMCM-684
ManufacturerQ-Tech
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-177-0468 (NSN)
Federal Item NameOSCILLATOR,CRYSTAL CONTROLLED
Federal Supply Class5955 — Crystals and Oscillators
Overall Height0.118 INCHES MAXIMUM
Circuit Construction TypeSOLID STATE
Connection TypeWIRE LEAD TERMINALS LEFT SIDE
Frequency Per Channel16.0 MEGAHERTZ NOMINAL OUTPUT CHANNEL
Maximum Power Drain Rating138.0 MILLIWATTS
Average Life MeasurementNOT RATED
Precious Material And LocationINTERNAL SURFACES GOLD
Basic Shape StyleRECTANGULAR OR SQUARE
Overall Width0.385 INCHES MAXIMUM
Connection Contact Type And Quanti16 WIRE LEAD TERMINALS EXTERNAL
Operating Temp Range-55.0 TO 125.0 CELSIUS
Vendor Part Numbers7111-018, A567A031-103
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 MCM-684 available?
We can source MCM-684 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 MCM-684 by Q-Tech obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MCM-684 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 MCM-684?
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 MCM-684?
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.