Leonardo Tactical Systems · Electronic Components
U74LS138
MICROCIRCUIT,DIGITAL — NSN 5962-01-004-1270
Part NumberU74LS138
ManufacturerLeonardo Tactical Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5962-01-004-1270 (NSN)
Federal Item NameMICROCIRCUIT,DIGITAL
Federal Supply Class5962 — Microcircuits, Electronic
Operating Temp Range+0.0 TO 70.0 CELSIUS
Storage Temp Range-65.0 TO 150.0 CELSIUS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Design Function1 DECODER, ONE OF EIGHT LINE
Overall Height0.325 INCHES NOMINAL
Enclosure ConfigurationDUAL-IN-LINE
Enclosure MaterialPLASTIC
Time Rating Per Chacteristic27.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 41.00 NANOSECONDS MAXIMUM PROPAGATION DEL
Body Width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
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 U74LS138 available?
We can source U74LS138 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 U74LS138 by Leonardo Tactical Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If U74LS138 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 U74LS138?
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 U74LS138?
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.