Siliconix Incorporated · Electronic Components
J503
SEMICONDUCTOR DEVICE,DIODE — NSN 5961-01-408-6782
Part NumberJ503
ManufacturerSiliconix Incorporated
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-408-6782 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialPLASTIC ENCLOSURE; SILICON SEMICONDUCTOR
Current Rating20.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC AND 50.00 MILLIAMPERES MAXIMUM REVERSE CURRENT, INSTANTANEOUS
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.210 INCHES MAXIMUM
Overall Width0.205 INCHES MAXIMUM
Overall Height0.165 INCHES MAXIMUM
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating In Volts Per Charac1.7 MAXIMUM LIMITING VOLTAGE
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 J503 available?
We can source J503 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 J503 by Siliconix Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If J503 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 J503?
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 J503?
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.