Dialight · Electronic Components
557-1603-203
Light Emitting Diode
Part Number557-1603-203
ManufacturerDialight
AvailabilityAvailable to order — request a quote
Specifications
NSN5980-01-565-9610 (NSN)
Federal Item NameLIGHT EMITTING DIODE
Federal Supply Class5980 — Optoelectronic Devices
Color Tone Produced Per SourceGREEN SEMICONDUCTOR
Overall Width17.8 MILLIMETERS NOMINAL
Mounting MethodUNTHREADED HOLE(S)
Overall Diameter19.8 MILLIMETERS NOMINAL
Overall Height35.6 MILLIMETERS NOMINAL
Voltage Rating In Volts Per Charac12.0 NOMINAL BASE SUPPLY VOLTAGE
Vendor Part Numbers83F5455
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 557-1603-203 available?
We can source 557-1603-203 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 557-1603-203 by Dialight obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 557-1603-203 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 557-1603-203?
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 557-1603-203?
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.