Mersen USA Ep · Electronic Components
A12X1
Fuse, Cartridge
Part NumberA12X1
ManufacturerMersen USA Ep
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-079-3972 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
MaterialCERAMIC CASE
Precious MaterialSILVER
Precious Material And LocationTERMINAL SURFACES SILVER
Interruption Indicator MethodOPAQUE BODY
Overall Diameter0.406 INCHES NOMINAL
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Maximum Voltage Rating In Volts130.0 AC AND 130.0 DC
Continuous Current Rating In Amps1.000
Circuit Over Current InterruptionNORMAL INSTANTANEOUS
Overall Length1.500 INCHES NOMINAL
Surface TreatmentSILVER TERMINAL
Cancelled NSN5920-00-957-9844 (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 A12X1 available?
We can source A12X1 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 A12X1 by Mersen USA Ep obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A12X1 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 A12X1?
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 A12X1?
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.