Leach International · Electronic Components
637-CSS24VDC
Relay, Electromagnetic
Part Number637-CSS24VDC
ManufacturerLeach International
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-583-8349 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nominal Operating Current Rating A100.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Load Current Rating A10.0 AMPERES DC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY
Winding Dc Resistance Rating235.0 OHMS NOMINAL SINGLE WINDING
Coil Quantity1
Center To Center Distance Between1.468 INCHES NOMINAL SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Ratin29.0 DC
Overall Length2.530 INCHES NOMINAL
Duty TypeCONTINUOUS
Terminal Type And Quantity11 PIN ALL FUNCTIONS
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 637-CSS24VDC available?
We can source 637-CSS24VDC 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 637-CSS24VDC by Leach International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 637-CSS24VDC 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 637-CSS24VDC?
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 637-CSS24VDC?
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.