Raytheon · Electronic Components
531021-121
Resistor, Thermal
Part Number531021-121
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-173-4083 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Body Outside Diameter0.140 INCHES NOMINAL
Zero Power Resistance Tolerance In-5.0 TO 5.0
Terminal Diameter0.025 INCHES NOMINAL
Maximum Power Dissipation Rating125.00 MILLIWATTS
Maximum Operating Temp150.0 CELSIUS
Style DesignatorROD
Terminal Type And Quantity2 WIRE LEAD
Inclosure TypeENCAPSULATED
Thermal Time Constant In Seconds40.0
Reliability IndicatorNOT ESTABLISHED
Reference Temp In Deg Celsius25.0
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 531021-121 available?
We can source 531021-121 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 531021-121 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 531021-121 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 531021-121?
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 531021-121?
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.