Fairchild Semiconductor · Electronic Components
SB540
DIODE SCHOTTKY 5A 40V DO-201AD
Part NumberSB540
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-484-1729 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
MaterialSILICON SEMICONDUCTOR; PLASTIC ENCLOSURE
Current Rating5.00 AMPERES MAXIMUM FORWARD CURRENT, AVERAGE AND 150.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length2.285 INCHES MINIMUM
Overall Diameter0.050 INCHES NOMINAL
Voltage Rating In Volts Per Charac40.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 0.55 MAXIMUM FORWARD VOLTAGE, DC AND 28.0 MAXIMUM REVERSE VOLTAGE, TOTA
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 SB540 available?
We can source SB540 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 SB540 by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SB540 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 SB540?
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 SB540?
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.