Honeywell International Inc. · Electronic Components
LB21J3
Resistor, Thermal
Part NumberLB21J3
ManufacturerHoneywell International Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-946-9713 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Resistance Tolerance At A Specifie-8.0 TO 8.0 SEVENTH RESISTANCE-TEMPERATURE POINT
Ambient Temp At Full Rated Power25.0 CELSIUS
Terminal Diameter0.025 INCHES NOMINAL
Zero Power Resistance Tolerance In-5.0 TO 5.0
Terminal Length3.750 INCHES NOMINAL
Zero Power Resistance At Specified4.7 OHMS TENTH RESISTANCE-TEMPERATURE POINT
Body Outside Diameter0.400 INCHES NOMINAL
Thermal Time Constant In Seconds10.0
Body Width0.110 INCHES NOMINAL
Power Dissipation Constant In Mill8.0
Maximum Operating Temp150.0 CELSIUS
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 LB21J3 available?
We can source LB21J3 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 LB21J3 by Honeywell International Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If LB21J3 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 LB21J3?
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 LB21J3?
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.