Teledyne Defense Electronics · Electronic Components
421-3175
Relay, Electromagnetic
Part Number421-3175
ManufacturerTeledyne Defense Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-009-3155 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Diameter0.370 INCHES MAXIMUM
Main Contact Load Current Rating A500.0 MILLIAMPERES DC RESISTIVE LOAD
Mounting Facility Type And Quantit1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Ratin28.0 DC
Operating Voltage Rating And Type26.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Time Delay0.002 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Duty TypeCONTINUOUS
Winding Dc Resistance Rating2.0 KILOHMS NOMINAL ALL WINDINGS
Terminal Type And Quantity7 PIN ALL FUNCTIONS
Nonpile Up Main Contact Arrangemen1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Coil Quantity2
Vendor Part Numbers950125-5B
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 421-3175 available?
We can source 421-3175 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 421-3175 by Teledyne Defense Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 421-3175 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 421-3175?
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 421-3175?
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.