MIL-SPEC · Electronic Components
RTH22ES121K
Resistor, Thermal
Part NumberRTH22ES121K
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-270-1246 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Maximum Operating Temp125.0 CELSIUS
Test Data Document81349-MILT23648 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Temp Points For Resistance Reading75.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT
Maximum Power Dissipation Rating500.00 MILLIWATTS
Resistance Tolerance At A Specifie-14.0 TO 14.0 SECOND RESISTANCE-TEMPERATURE POINT
Zero Power Resistance At Specified164.4 OHMS FOURTH RESISTANCE-TEMPERATURE POINT
Zero Power Resistance120.000 OHMS
Zero Power Resistance Tolerance In-10.0 TO 10.0
Inclosure TypeENCAPSULATED
Body Outside Diameter0.140 INCHES NOMINAL
Body Length0.410 INCHES NOMINAL
ESD/EMICode B — 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 RTH22ES121K available?
We can source RTH22ES121K 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 RTH22ES121K by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RTH22ES121K 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 RTH22ES121K?
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 RTH22ES121K?
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.