Carborundum Co The Refractories Div · Electronic Components
492H
Resistor, Thermal
Part Number492H
ManufacturerCarborundum Co The Refractories Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-776-2136 (NSN)
Federal Item NameRESISTOR,THERMAL
Federal Supply Class5905 — Resistors
Thermal Time Constant In Seconds40.0
Ambient Temp At Full Rated Power25.0 CELSIUS
Maximum Power Dissipation Rating0.38 WATTS
Maximum Operating Temp200.0 CELSIUS
Zero Power Resistance1.400 KILOHMS
Zero Power Resistance Tolerance In-5.0 TO 5.0
Vendor Part Numbers5490828P38
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 492H available?
We can source 492H 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 492H by Carborundum Co The Refractories Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 492H 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 492H?
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 492H?
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.