TE Connectivity · Electronic Components
CR21-1
Relay, Electromagnetic
Part NumberCR21-1
ManufacturerTE Connectivity
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-813-5138 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Width2.310 INCHES NOMINAL
Main Contact Load Current Rating A15.0 AMPERES AC RESISTIVE LOAD
Terminal Type And Quantity8 THREADED STUD ALL FUNCTIONS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Winding Quantity1
Center To Center Distance Between1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY
Coil Quantity1
Overall Height2.750 INCHES NOMINAL
Operating Voltage Rating And Type28.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Unthreaded Mounting Hole Diameter0.172 INCHES NOMINAL SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Vendor Part Numbers4B97529-103A
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 CR21-1 available?
We can source CR21-1 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 CR21-1 by TE Connectivity obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CR21-1 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 CR21-1?
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 CR21-1?
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.