Fluke Corp. · Electronic Components
643031
Crystal Unit, Quartz
Part Number643031
ManufacturerFluke Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-01-203-6082 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Load Capacitance In Picofarads12.5 NOMINAL
Overall Diameter2.9 MILLIMETERS MINIMUM AND 3.1 MILLIMETERS MAXIMUM
Specified Frequency32.768 KILOHERTZ
Center To Center Distance Between4.8 MILLIMETERS MINIMUM AND 5.2 MILLIMETERS MAXIMUM
Drive Level Rating1.0 MICROWATTS MAXIMUM
Style DesignatorROUND BODY, WIRE LEADS
Equivalent Resistance Value In Ohm40000.0 MAXIMUM
Terminal Diameter0.23 MILLIMETERS MINIMUM AND 0.37 MILLIMETERS MAXIMUM
Circuit ResonanceANTIRESONANCE
Operating Temp Range-10.0 TO 60.0 CELSIUS
Terminal Length6.8 MILLIMETERS MINIMUM AND 9.2 MILLIMETERS MAXIMUM
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 643031 available?
We can source 643031 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 643031 by Fluke Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 643031 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 643031?
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 643031?
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.