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Palomar Products, Inc.  · Electronic Components

1017945-4B

Crystal Unit, Quartz

Part Number1017945-4B
ManufacturerPalomar Products, Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Mode Of OscillationFIFTH OVERTONE
Style DesignatorHAT TYPE, 3 WIRE LEADS
Center To Center Distance Between0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
Equivalent Resistance Value In Ohm55.0 MAXIMUM
Drive Level Rating0.2 MILLIWATTS NOMINAL
Frequency Tolerance For Operating-0.001 TO 0.001
Terminal Diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM
Overall Length0.220 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
Shunt Capacitance In Picofarads2.6 MINIMUM AND 3.6 MAXIMUM
Circuit ResonanceSERIES RESONANCE
Diameter0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM
Vendor Part Numbers945051-4B
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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

Frequently asked

Is 1017945-4B available?
We can source 1017945-4B 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 1017945-4B by Palomar Products, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1017945-4B 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 1017945-4B?
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 1017945-4B?
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.