Leach International · Electronic Components
TD-843-500M
Relay, Electromagnetic
Part NumberTD-843-500M
ManufacturerLeach International
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-998-1273 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Terminal Type And Quantity8 PIN ALL FUNCTIONS
Overall Height1.030 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Overall Width2.150 INCHES NOMINAL
Main Contact Load Current Rating A5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
Center To Center Distance Between1.844 INCHES NOMINAL SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Operating Voltage Rating And Type26.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nominal Operating Current Rating A180.0 MILLIAMPERES DC SINGLE WINDING
Coil Quantity1
Time Delay0.50 SECONDS MINIMUM AND 20.00 SECONDS MAXIMUM ADJUSTABLE OPERATE TIME
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 TD-843-500M available?
We can source TD-843-500M 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 TD-843-500M by Leach International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TD-843-500M 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 TD-843-500M?
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 TD-843-500M?
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.