Littelfuse, Inc. · Electronic Components
KRDM221
Relay, Solid State
Part NumberKRDM221
ManufacturerLittelfuse, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-687-4708 (NSN)
Federal Item NameRELAY,SOLID STATE
Federal Supply Class5945 — Relays and Solenoids
Terminal Type And Quantity5 QUICK DISCONNECT, MALE
Voltage Rating24.0 VOLTS NOMINAL INPUT
Time Delay1.0 SECONDS MINIMUM AND 100.0 SECONDS MAXIMUM DELAY
Operating Temp Range-20.0 TO 60.0 CELSIUS
Overall Width50.8 MILLIMETERS NOMINAL
Overall Height50.8 MILLIMETERS NOMINAL
Vendor Part Numbers011-00244
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 KRDM221 available?
We can source KRDM221 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 KRDM221 by Littelfuse, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KRDM221 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 KRDM221?
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 KRDM221?
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.