ON Semiconductor · Electronic Components
NE521N
IC COMPARATOR DUAL DIFF 14-DIP
Part NumberNE521N
ManufacturerON Semiconductor
AvailabilityAvailable to order — request a quote
Specifications
NSN5962-01-065-9599 (NSN)
Federal Item NameMICROCIRCUIT,LINEAR
Operating Temp Range+0.0 TO 70.0 CELSIUS
Design Function2 COMPARATOR, VOLTAGE, DIFFERENTIAL
Enclosure ConfigurationDUAL-IN-LINE
Features ProvidedHIGH SPEED AND SCHOTTKY
Body Length1.240 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
Body Width0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM
Input Circuit Pattern4 INPUT
Federal Supply Class5962 — Microcircuits, Electronic
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 NE521N available?
We can source NE521N 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 NE521N by ON Semiconductor obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NE521N 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 NE521N?
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 NE521N?
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.