Cornell-Dubilier Marketing · Electronic Components
KR5D521F
Capacitor, Fixed, Mica Dielectric
Part NumberKR5D521F
ManufacturerCornell-Dubilier Marketing
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-00-191-5778 (NSN)
Federal Item NameCAPACITOR,FIXED,MICA DIELECTRIC
Federal Supply Class5910 — Capacitors
Body Width0.199 INCHES NOMINAL
Tolerance Range Per Section-1.00 TO 1.00 PERCENT SINGLE SECTION
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Dissipation Factor At Reference Te0.1000
Terminal Length1.125 INCHES MINIMUM
Body Height0.454 INCHES NOMINAL
Capacitance Value Per Section520.000 PICOFARADS SINGLE SECTION
Insulation Resistance At Reference100000.0 MEGOHMS
Terminal Type And Quantity2 UNINSULATED WIRE LEAD
Body Length0.720 INCHES NOMINAL
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS 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 KR5D521F available?
We can source KR5D521F 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 KR5D521F by Cornell-Dubilier Marketing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KR5D521F 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 KR5D521F?
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 KR5D521F?
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.