MIL-SPEC · Electronic Components
CR51A/U33M44945
Crystal Unit, Quartz
Part NumberCR51A/U33M44945
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-883-3134 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Operating Temp Range-55.0 TO 105.0 CELSIUS
Overall Thickness0.352 INCHES MAXIMUM
Overall Length1.023 INCHES MAXIMUM
Shunt Capacitance In Picofarads7.0 MAXIMUM
Equivalent Resistance Value In Ohm40.0 NOMINAL
Center To Center Distance Between0.486 INCHES NOMINAL
Style DesignatorOVAL BODY, PIN TERMINALS
Frequency Tolerance For Operating-0.005 TO 0.005
Drive Level Rating20.0 MILLIWATTS NOMINAL AND 16.0 MILLIWATTS MINIMUM AND 24.0 MILLIWATTS MAXIMUM
Specified Frequency33.44945 MEGAHERTZ
Mode Of OscillationTHIRD OVERTONE
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 CR51A/U33M44945 available?
We can source CR51A/U33M44945 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 CR51A/U33M44945 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR51A/U33M44945 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 CR51A/U33M44945?
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 CR51A/U33M44945?
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.