Fairchild Semiconductor · Electronic Components
KBU4K
IC BRIDGE RECT 4A 800V KBU
Part NumberKBU4K
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-326-7140 (NSN)
Federal Item NameRECTIFIER,SEMICONDUCTOR DEVICE,U
MaterialSILICON
Operating Temp Range-65.0 TO 160.0 CELSIUS
Terminals4 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.935 INCHES NOMINAL
Overall Width0.760 INCHES NOMINAL
Overall Height0.280 INCHES NOMINAL
Absolute Maximum Current Rating Pe200.00 AMPERES PEAK FORWARD SURGE CURRENT AND 4.00 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Absolute Maximum Voltage Rating In800.0 REPETITIVE PEAK REVERSE VOLTAGE
Circuit Connection Style DesignatoBRIDGE 1 PHASE
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 KBU4K available?
We can source KBU4K 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 KBU4K by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KBU4K 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 KBU4K?
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 KBU4K?
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.