Fairchild Semiconductor · Electronic Components
1N4740A
Zener diode, 10V 1W, DO-41 (1N4740)
Part Number1N4740A
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-057-7859 (NSN)
Additional NSNs5961-01-580-3602
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialGLASS ENCLOSURE; SILICON SEMICONDUCTOR
Current Rating25.00 MILLIAMPERES NOMINAL VOLTAGE REGULATOR DIODE CURRENT
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.182 INCHES NOMINAL
Overall Diameter0.094 INCHES NOMINAL
Features ProvidedHERMETICALLY SEALED CASE
Joint Electronic Device EngineerinDO-41
Maximum Operating Temp Per Measure200.0 CELSIUS AMBIENT AIR
Terminal Length1.100 INCHES MINIMUM
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 1N4740A available?
We can source 1N4740A 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 1N4740A by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1N4740A 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 1N4740A?
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 1N4740A?
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.