Electro Switch Corp. · Electronic Components
PS2-121B
Switch, Push
Part NumberPS2-121B
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-139-2399 (NSN)
Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Thread Class2A
Terminal Type And Quantity3 PRINTED CIRCUIT
ColorBLACK SINGLE ACTUATOR
Actuator Height0.230 INCHES NOMINAL
Actuator Diameter0.122 INCHES NOMINAL
Precious Material And LocationCONTACTS SILVER AND CONTACT SURFACES GOLD
Thread Series DesignatorUNS
Inclosure TypeFULLY INCLOSED
Contact Load Current Rating At Max5.000 AMPERES RESISTIVE DC AND 5.000 AMPERES RESISTIVE AC
Maximum Voltage Rating In Volts125.0 AC AND 28.0 DC
Thread Quantity Per Inch40
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 PS2-121B available?
We can source PS2-121B 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 PS2-121B by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If PS2-121B 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 PS2-121B?
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 PS2-121B?
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.