MIL-SPEC · Electronic Components
CK21AX390K
Capacitor, Fixed, Ceramic Dielectr
Part NumberCK21AX390K
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-00-965-8770 (NSN)
Federal Item NameCAPACITOR,FIXED,CERAMIC DIELECTR
Federal Supply Class5910 — Capacitors
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM
Terminal Type And Quantity2 UNINSULATED WIRE LEAD
Voltage Temp Limits Per Section In-25.0 TO 15.0 WITH RATED VOLTAGE APPLIED SINGLE SECTION
Terminal Length1.250 INCHES MINIMUM
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Nonderated Continuous Voltage Rati500.0 DC SINGLE SECTION
Capacitance Value Per Section39.000 PICOFARADS SINGLE SECTION
Body Length0.540 INCHES NOMINAL
Body Diameter0.225 INCHES NOMINAL
Tolerance Range Per Section-10.00 TO 10.00 PERCENT SINGLE SECTION
Test Data Document81349-MIL-C-11015 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Cancelled NSN5910-00-889-4306 (cancelled)
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 CK21AX390K available?
We can source CK21AX390K 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 CK21AX390K by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CK21AX390K 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 CK21AX390K?
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 CK21AX390K?
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.