MIL-SPEC · Electronic Components
CR78/U9M646875
Crystal Unit, Quartz
Part NumberCR78/U9M646875
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-446-9769 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Center To Center Distance Between4.7 MILLIMETERS MINIMUM AND 5.1 MILLIMETERS MAXIMUM
Terminal Diameter1.0 MILLIMETERS MINIMUM AND 1.1 MILLIMETERS MAXIMUM
Drive Level Rating4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM
Load Capacitance In Picofarads29.5 MINIMUM AND 30.5 MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Mode Of OscillationFUNDAMENTAL
Shunt Capacitance In Picofarads7.0 MAXIMUM
Circuit ResonanceANTIRESONANCE
Operating Temp Range-55.0 TO 105.0 CELSIUS
Body Length13.5 MILLIMETERS MAXIMUM
Body Thickness3.8 MILLIMETERS MAXIMUM
ESD/EMICode A — ESD/EMI sensitive item
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 CR78/U9M646875 available?
We can source CR78/U9M646875 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 CR78/U9M646875 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR78/U9M646875 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 CR78/U9M646875?
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 CR78/U9M646875?
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.