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Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SMD161978
Crystal Unit, Quartz
Part NumberSMD161978
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-852-1391 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Body Width0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM
Center To Center Distance Between0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Style DesignatorOVAL BODY, PIN TERMINALS
Frequency Tolerance For Operating-0.005 TO 0.005
Equivalent Resistance Value In Ohm40.0 NOMINAL
Overall Thickness0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM
Circuit ResonanceSERIES RESONANCE
Shunt Capacitance In Picofarads7.0 MAXIMUM
Overall Length0.739 INCHES MINIMUM AND 0.769 INCHES MAXIMUM
Operating Temp Range-55.0 TO 90.0 CELSIUS
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 SMD161978 available?
We can source SMD161978 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 SMD161978 by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SMD161978 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 SMD161978?
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 SMD161978?
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.