Raytheon · Electronic Components
531021-391
Resistor, Thermal
Part Number531021-391
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-041-1309 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Ambient Temp At Full Rated Power100.0 CELSIUS
Terminal Length1.500 INCHES NOMINAL
Maximum Operating Temp150.0 CELSIUS
Maximum Power Dissipation Rating125.00 MILLIWATTS
Zero Power Resistance390.000 OHMS
Inclosure TypeENCAPSULATED
Test Data Document96214-507928 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER
Reference Temp In Deg Celsius25.0
Zero Power Resistance Tolerance In-10.0 TO 10.0
Terminal Type And Quantity2 WIRE LEAD
Resistance Tolerance At A Specifie-10.0 TO 10.0 ALL RESISTANCE-TEMPERATURE POINTS
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 531021-391 available?
We can source 531021-391 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 531021-391 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 531021-391 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 531021-391?
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 531021-391?
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.