Leonardo Tactical Systems · Electronic Components
U74LS157
MICROCIRCUIT,DIGITAL — NSN 5962-01-050-0921
Part NumberU74LS157
ManufacturerLeonardo Tactical Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5962-01-050-0921 (NSN)
Federal Item NameMICROCIRCUIT,DIGITAL
Federal Supply Class5962 — Microcircuits, Electronic
Operating Temp Range-55.0 TO 125.0 CELSIUS
Storage Temp Range-65.0 TO 150.0 CELSIUS
Max Power Dissipation88.0 MILLIWATTS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Design Function4 SELECTOR, DATA, MULTIPLEXER, TWO TO ONE LINE
Enclosure ConfigurationDUAL-IN-LINE
Enclosure MaterialCERAMIC AND GLASS
Body Height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
Case Outline Source And DesignatorD-2 MIL-M-38510
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 U74LS157 available?
We can source U74LS157 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 U74LS157 by Leonardo Tactical Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If U74LS157 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 U74LS157?
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 U74LS157?
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.