Fairchild Semiconductor · Electronic Components
1N4739A
DIODE ZENER 9.1V 1W DO-41
Part Number1N4739A
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-412-8499 (NSN)
Additional NSNs5961-01-571-7345
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR; GLASS ENCLOSURE
Current Rating0.50 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT NEAR BREAKDOWN KNEE
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.160 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
Overall Diameter0.080 INCHES MINIMUM AND 0.107 INCHES MAXIMUM
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating In Volts Per Charac9.1 NOMINAL NOMINAL REGULATOR VOLTAGE
Joint Electronic Device EngineerinDO-41
Maximum Operating Temp Per Measure200.0 CELSIUS JUNCTION
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 1N4739A available?
We can source 1N4739A 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 1N4739A by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1N4739A 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 1N4739A?
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 1N4739A?
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.