Q-Tech Corp. · Electronic Components
MCM621
Oscillator, Crystal Controlled
Part NumberMCM621
ManufacturerQ-Tech Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-282-1043 (NSN)
Federal Item NameOSCILLATOR,CRYSTAL CONTROLLED
Federal Supply Class5955 — Crystals and Oscillators
Connection TypePIN BOTTOM
Circuit Construction TypeSOLID STATE
Frequency Per Channel85.33 MEGAHERTZ NOMINAL OPERATING CHANNEL
Basic Shape StyleRECTANGULAR OR SQUARE
Overall Width0.500 INCHES NOMINAL
Overall Height0.530 INCHES MAXIMUM
Operating Temp Range+0.0 TO 70.0 CELSIUS
Overall Length0.800 INCHES NOMINAL
Installation DesignMODULE
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 MCM621 available?
We can source MCM621 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 MCM621 by Q-Tech Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MCM621 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 MCM621?
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 MCM621?
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.