Micro Quality Semiconductor Inc. Sub Of Microsemi Corp. · Electronic Components
1N4438
RECTIFIER,SEMICONDUCTOR DEVICE,U — NSN 5961-00-449-4245
Part Number1N4438
ManufacturerMicro Quality Semiconductor Inc. Sub Of Microsemi Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-00-449-4245 (NSN)
Federal Item NameRECTIFIER,SEMICONDUCTOR DEVICE,U
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialSILICON
Terminals4 TAB, SOLDER LUG
Mounting MethodUNTHREADED HOLE(S)
Overall Length0.420 INCHES NOMINAL
Overall Diameter0.761 INCHES NOMINAL
Absolute Maximum Current Rating Pe10.00 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE AND 100.00 AMPERES PEAK FORWARD SURGE CURRENT
Absolute Maximum Voltage Rating In600.0 REPETITIVE PEAK REVERSE VOLTAGE
Circuit Connection Style DesignatoBRIDGE 1 PHASE
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 1N4438 available?
We can source 1N4438 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 1N4438 by Micro Quality Semiconductor Inc. Sub Of Microsemi Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1N4438 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 1N4438?
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 1N4438?
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.