Fairchild Semiconductor · Electronic Components
BZX79C20
DIODE ZENER 20V 500MW DO-35
Part NumberBZX79C20
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-174-6642 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR
Current Rating250.00 MILLIAMPERES NOMINAL FORWARD CURRENT, DC AND 250.00 MILLIAMPERES NOMINAL FORWARD CURRENT, REPETITIVE, MAXIMUM PEA
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.177 INCHES MAXIMUM
Overall Diameter0.072 INCHES MAXIMUM
Power Rating Per Characteristic400.0 MILLIWATTS NOMINAL ON-STATE POWER DISSIPATION
Voltage Rating In Volts Per Charac20.0 NOMINAL REGULATOR VOLTAGE, DC
Capacitance Rating In Picofarads36.0 NOMINAL
Voltage Tolerance In Percent-5.0 TO 5.0
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 BZX79C20 available?
We can source BZX79C20 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 BZX79C20 by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BZX79C20 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 BZX79C20?
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 BZX79C20?
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.