Telephone Company Of America Incorporated · Electronic Components
A40191
Resistor, Thermal
Part NumberA40191
ManufacturerTelephone Company Of America Incorporated
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-556-7212 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Maximum Operating Temp200.0 CELSIUS
Zero Power Resistance At Specified155.0 KILOHMS FIRST RESISTANCE-TEMPERATURE POINT
Reference Temp In Deg Celsius25.0
Inclosure TypeENCAPSULATED
Zero Power Resistance50.000 KILOHMS
Resistance Tolerance At A Specifie-10.0 TO 10.0 ALL RESISTANCE-TEMPERATURE POINTS
Temp Points For Resistance Reading40.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT
Zero Power Resistance Tolerance In-10.0 TO 10.0
Ambient Temp At Full Rated Power125.0 CELSIUS
Reliability IndicatorNOT ESTABLISHED
Cancelled NSN5905-00-549-9812 (cancelled)
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 A40191 available?
We can source A40191 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 A40191 by Telephone Company Of America Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A40191 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 A40191?
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 A40191?
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.