Dean Technology Inc. · Electronic Components
S05CA21AC
Arrester, Electrical Surge
Part NumberS05CA21AC
ManufacturerDean Technology Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-051-8277 (NSN)
Federal Item NameARRESTER,ELECTRICAL SURGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Arrester TypeSELENIUM
Overall Length4.839 INCHES NOMINAL
Terminal Quantity2
Overall Height4.000 INCHES NOMINAL
Mounting MethodSTUD(S)
Terminal TypeSOLDER LUG
Mounting ConfigurationTWO 5/16 IN. -18 THD MTG STUDS SPACED 4.839 IN. END TO END
Usage DesignINDOOR
Overall Width3.000 INCHES NOMINAL
Breakdown Voltage525.000 VOLTS NOMINAL
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 S05CA21AC available?
We can source S05CA21AC 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 S05CA21AC by Dean Technology Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S05CA21AC 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 S05CA21AC?
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 S05CA21AC?
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.