Time Mark Corp. · Electronic Components
EX258B
Relay, Electromagnetic
Part NumberEX258B
ManufacturerTime Mark Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-444-7859 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Frequency In Hertz50.0 NOMINAL
Precious Material And LocationTERMINALS SILVER
Main Contact Load Current Rating A4.0 AMPERES AC RESISTIVE LOAD
Precious MaterialSILVER
Main Contact Maximum Voltage Ratin120.0 AC
Coil Quantity1
Duty TypeCONTINUOUS
Winding Quantity1
Vendor Part Numbers410-6184-010
ESD/EMICode A — ESD/EMI sensitive item
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 EX258B available?
We can source EX258B 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 EX258B by Time Mark Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If EX258B 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 EX258B?
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 EX258B?
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.