Frequency Electronics Inc. · Electronic Components
FE188A
Crystal Unit, Quartz
Part NumberFE188A
ManufacturerFrequency Electronics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5955-00-105-6634 (NSN)
Federal Item NameCRYSTAL UNIT,QUARTZ
Federal Supply Class5955 — Crystals and Oscillators
Frequency Stability In Percent-0.0005 TO 0.0005
Terminal Diameter0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
Mode Of OscillationFUNDAMENTAL
Overall Length0.990 INCHES MINIMUM AND 1.007 INCHES MAXIMUM
Controlled Reference Temp78.0 CELSIUS
Frequency Tolerance For Operating-0.001 TO 0.001
Center To Center Distance Between0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
Load Capacitance In Picofarads75.0 NOMINAL
Overall Thickness0.352 INCHES MAXIMUM
Drive Level Rating0.04 MILLIWATTS NOMINAL
Frequency Tolerance At Reference T-0.001 TO 0.001
Vendor Part Numbers2058851-0701
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 FE188A available?
We can source FE188A 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 FE188A by Frequency Electronics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If FE188A 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 FE188A?
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 FE188A?
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.