National Semiconductor · Op Amp
7800303XA
OP AMP, HIGH
Part Number7800303XA
ManufacturerNational Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
Generic Part NumberLM143
Pin Count8
Package DescriptorX
Approved SourcesMICROSEMI (1), ROCHESTER
QML ListedYes — on the Qualified Manufacturers List
Vendor Part NumbersSG143T-DESC, LM143H/883
Federal Supply Class5962 — Microcircuits, Electronic
CAGE CodesMICROSEMI (1): 34333, ROCHESTER: 3V146
NSN5962-01-135-7395 (NSN)
Federal Item NameMICROCIRCUIT,LINEAR
Operating Temp Range-55.0 TO 125.0 CELSIUS
Storage Temp Range-65.0 TO 150.0 CELSIUS
Voltage Rating-40.0 VOLTS MINIMUM POWER SOURCE AND 40.0 VOLTS MAXIMUM POWER SOURCE
Current Rating4.00 MILLIAMPERES NOMINAL OUTPUT
Max Power Dissipation680.0 MILLIWATTS
Design Function1 AMPLIFIER, OPERATIONAL, GENERAL PURPOSE
Terminals8 PIN
Enclosure ConfigurationCAN
Enclosure MaterialMETAL
Terminal Surface TreatmentSOLDER
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 7800303XA available?
We can source 7800303XA 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 7800303XA by National Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 7800303XA 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 7800303XA?
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 7800303XA?
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.