Lockheed Martin Corporation · Electronic Components
77C721121
Resistor, Thermal
Part Number77C721121
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-162-0816 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Reliability IndicatorNOT ESTABLISHED
Body Outside Diameter0.400 INCHES NOMINAL
Zero Power Resistance100.000 OHMS
Terminal Type And Quantity2 WIRE LEAD
Maximum Operating Temp125.0 CELSIUS
Body Width0.250 INCHES NOMINAL
Ambient Temp At Full Rated Power25.0 CELSIUS
Terminal Length1.000 INCHES MINIMUM
Inclosure TypeENCAPSULATED
Zero Power Resistance Tolerance In-40.0 TO 40.0
Terminal Diameter0.025 INCHES NOMINAL
Vendor Part Numbers225D10102
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 77C721121 available?
We can source 77C721121 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 77C721121 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 77C721121 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 77C721121?
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 77C721121?
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.