Keysight Technologies · Electronic Components
0490-0189
Switch, Reed
Part Number0490-0189
ManufacturerKeysight Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-483-4003 (NSN)
Federal Item NameSWITCH,REED
Federal Supply Class5930 — Switches
Body StyleUNCASED
Maximum Voltage Rating In Volts300.0 AC
Body Length0.800 INCHES NOMINAL
Mounting MethodPANEL
Contact Load Current Rating At Max500.000 MILLIAMPERES RESISTIVE AC
Body Diameter0.125 INCHES NOMINAL
Terminal Type And Quantity2 WIRE LEAD
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
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 0490-0189 available?
We can source 0490-0189 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 0490-0189 by Keysight Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 0490-0189 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 0490-0189?
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 0490-0189?
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.