MIL-SPEC · Electronic Components
CR25/U445K0000
Crystal Unit, Quartz
Part NumberCR25/U445K0000
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-457-1685 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Style DesignatorOVAL BODY, PIN TERMINALS
Center To Center Distance Between0.486 INCHES NOMINAL
Frequency Tolerance For Operating-0.010 TO 0.010
Operating Temp Range-40.0 TO 85.0 CELSIUS
Equivalent Resistance Value In Ohm6500.0 MAXIMUM
Drive Level Rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
Overall Width0.757 INCHES MAXIMUM
Mode Of OscillationFUNDAMENTAL
Circuit ResonanceSERIES RESONANCE
Specified Frequency445.000 KILOHERTZ
Terminal Diameter0.075 INCHES MINIMUM AND 0.141 INCHES 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 CR25/U445K0000 available?
We can source CR25/U445K0000 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 CR25/U445K0000 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR25/U445K0000 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 CR25/U445K0000?
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 CR25/U445K0000?
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.