Fairchild Semiconductor · Electronic Components
KBU4G
IC BRIDGE RECT 4A 400V KBU
Part NumberKBU4G
ManufacturerFairchild Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-329-8728 (NSN)
Federal Item NameRECTIFIER,SEMICONDUCTOR DEVICE,U
MaterialSILICON
Operating Temp Range-55.0 TO 125.0 CELSIUS
Terminals4 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length1.750 INCHES MAXIMUM
Overall Width0.937 INCHES NOMINAL
Overall Height0.312 INCHES NOMINAL
Absolute Maximum Current Rating Pe100.00 AMPERES PEAK FORWARD SURGE CURRENT AND 4.00 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Absolute Maximum Voltage Rating In400.0 REVERSE VOLTAGE, PEAK
Circuit Connection Style DesignatoTRIPLER 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 KBU4G available?
We can source KBU4G 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 KBU4G by Fairchild Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KBU4G 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 KBU4G?
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 KBU4G?
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.