Littelfuse, Inc. · Electronic Components
1443
Fuse, Cartridge
Part Number1443
ManufacturerLittelfuse, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-497-1916 (NSN)
Federal Item NameFUSE,CARTRIDGE
Federal Supply Class5920 — Fuses and Lightning Arresters
Overall Diameter0.281 INCHES NOMINAL
Interruption Indicator MethodOPAQUE BODY
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Circuit Over Current InterruptionTIME DELAY
Continuous Current Rating In Amps3.750
Maximum Voltage Rating In Volts250.0 AC AND 250.0 DC
Overall Length1.250 INCHES NOMINAL
Body StyleTUBE TYPE
Surface TreatmentNICKEL TERMINAL
ESD/EMICode B — ESD/EMI sensitive item
Temp Rating35.0 CELSIUS
Circuit Connection Style DesignatoHALF-WAVE 1 PHASE
Enclosure FeatureGLASS CASE
Output Voltage Rating1300.0 DC VOLTS MAXIMUM
Terminal TypeFERRULE
MaterialSELENIUM
Stack Quantity1
Rms Input Maximum Voltage Rating3300.0 VOLTS
Load TypeINDUCTIVE AND RESISTIVE
Cancelled NSN6130-00-686-5157 (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 1443 available?
We can source 1443 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 1443 by Littelfuse, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1443 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 1443?
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 1443?
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.