Piezothermx · Electronic Components
21TD1
Resistor, Thermal
Part Number21TD1
ManufacturerPiezothermx
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-868-2440 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Zero Power Temp Coefficient Of Res-4.40
Terminal Type And Quantity2 WIRE LEAD
Inclosure TypeENCAPSULATED
Body Height0.032 INCHES MAXIMUM
Thermal Time Constant In Seconds16.0
Power Dissipation Constant In Mill7.8
Terminal Diameter0.016 INCHES NOMINAL
Zero Power Resistance100.000 OHMS
Body Length0.390 INCHES MAXIMUM
Reliability IndicatorNOT ESTABLISHED
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 21TD1 available?
We can source 21TD1 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 21TD1 by Piezothermx obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21TD1 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 21TD1?
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 21TD1?
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.