Cornell Dubilier Electronics (CDE) · Electronic Components
21FD3720
CAP FILM OIL WOUND 20UF 370VAC
Part Number21FD3720
ManufacturerCornell Dubilier Electronics (CDE)
AvailabilityAvailable to order — request a quote
Specifications
NSN5910-01-158-9792 (NSN)
Federal Item NameCAPACITOR,FIXED,METALLIZED,PAPER
Terminals2 TAB, SOLDER LUG
Body StyleW/O MTG FACILITIES, TERMINAL(S) ON ONE END
Terminal Surface TreatmentSOLDER
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 70.0 CELSIUS MAXIMUM
Nonderated Continuous Voltage Rati370.0 AC-RMS SINGLE SECTION
Terminal Length0.281 INCHES NOMINAL
Capacitance Value Per Section20.000 MICROFARADS SINGLE SECTION
Body Length3.500 INCHES NOMINAL
Center To Center Distance Between0.810 INCHES NOMINAL
Body Diameter1.750 INCHES NOMINAL
Federal Supply Class5910 — Capacitors
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 21FD3720 available?
We can source 21FD3720 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 21FD3720 by Cornell Dubilier Electronics (CDE) obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21FD3720 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 21FD3720?
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 21FD3720?
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.