Littelfuse · Electronic Components
SA43A
DIODE TVS 43V 500W AXL UNI 5%
Part NumberSA43A
ManufacturerLittelfuse
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-439-6885 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays And Solenoids
ESD/EMICode A — ESD/EMI sensitive item
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 SA43A available?
We can source SA43A 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 SA43A by Littelfuse obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SA43A 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 SA43A?
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 SA43A?
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.