Semtech · Discrete Semiconductors > Diodes
1N4981
E_SQ._MELF/ZENER VOLTAGE REGULATOR DIODE
Part Number1N4981
ManufacturerSemtech
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-841-8438 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR; GLASS OR PLASTIC ENCLOSURE
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.350 INCHES MAXIMUM
Overall Diameter0.145 INCHES MAXIMUM
Features ProvidedHERMETICALLY SEALED CASE
Terminal Length0.970 INCHES MINIMUM
Voltage Rating In Volts Per Charac90.0 NOMINAL NOMINAL REGULATOR VOLTAGE
Voltage Tolerance In Percent-2.0 TO 2.0
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
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 1N4981 available?
We can source 1N4981 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 1N4981 by Semtech obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1N4981 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 1N4981?
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 1N4981?
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.