L3Harris Interstate Electronics · Electronic Components
499-056-138
SEMICONDUCTOR DEVICE,DIODE — NSN 5961-01-021-6663
Part Number499-056-138
ManufacturerL3Harris Interstate Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5961-01-021-6663 (NSN)
Federal Item NameSEMICONDUCTOR DEVICE,DIODE
Federal Supply Class5961 — Semiconductor Devices And Associated Hardware
MaterialSILICON SEMICONDUCTOR; GLASS ENCLOSURE
Terminals2 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Overall Length0.315 INCHES MINIMUM AND 0.350 INCHES MAXIMUM
Overall Diameter0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
Maximum Operating Temp Per Measure175.0 CELSIUS AMBIENT AIR
Voltage Rating In Volts Per Charac190.0 MINIMUM BREAKDOWN VOLTAGE, DC AND 210.0 MAXIMUM BREAKDOWN VOLTAGE, DC
Features ProvidedHERMETICALLY SEALED CASE
Terminal Length0.500 INCHES MINIMUM
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 499-056-138 available?
We can source 499-056-138 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 499-056-138 by L3Harris Interstate Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 499-056-138 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 499-056-138?
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 499-056-138?
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.