Littelfuse, Inc. · Electronic Components
21801.6
Fuse, Cartridge
Part Number21801.6
ManufacturerLittelfuse, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-122-4181 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Circuit Over Current InterruptionTIME DELAY
Overall Length0.787 INCHES NOMINAL
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Overall Diameter0.197 INCHES NOMINAL
Continuous Current Rating In Amps1.600
Maximum Voltage Rating In Volts250.0 AC AND 250.0 DC
MaterialCOPPER TERMINAL
Interruption Indicator MethodVISIBLE ELEMENT
Body StyleTUBE TYPE
Surface TreatmentNICKEL TERMINAL
Cancelled NSN5920-01-222-4256 (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 21801.6 available?
We can source 21801.6 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 21801.6 by Littelfuse, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21801.6 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 21801.6?
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 21801.6?
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.