National Semiconduct · Integrated Circuits
LM1921T
IC 1 AMP INDUSTRIAL SWITCH TO220
Part NumberLM1921T
ManufacturerNational Semiconduct
AvailabilityCheck availability — request a quote
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 LM1921T available?
LM1921T is a part RH Electronics stocks and sources — availability changes daily, so request a quote and we'll confirm current stock, pricing and lead time, usually within a few hours.
Is LM1921T by National Semiconduct obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If LM1921T 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 LM1921T?
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 LM1921T?
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.