Dialight Corporation · Electronic Components
521-9181F
Light Emitting Diode
Part Number521-9181F
ManufacturerDialight Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5980-01-074-1633 (NSN)
Federal Item NameLIGHT EMITTING DIODE
Federal Supply Class5980 — Optoelectronic Devices
Mounting MethodPRESS FIT
Semiconductor MaterialGALLIUM PHOSPHIDE
Maximum Operating Temp Per Measure71.0 CELSIUS AMBIENT AIR
Overall Diameter0.285 INCHES NOMINAL
Internal ConfigurationPOINT CONTACT
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC
Lens TransparencyTRANSLUCENT
Function For Which DesignedVISIBLE LIGHT EMITTING
Internal Junction ConfigurationPN
Voltage Rating In Volts Per Charac1.7 NOMINAL FORWARD VOLTAGE, DC
Color Tone Produced Per SourceRED LENS
Cancelled NSN5980-01-188-8305 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
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 521-9181F available?
We can source 521-9181F 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 521-9181F by Dialight Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 521-9181F 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 521-9181F?
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 521-9181F?
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.