Standard Microsystems · Electronic Components
LAN91C111
Ethernet Controller, MAC & PHY Ethernet Controller, IEEE 802.3, IEEE 802.3u, 2.97 V, 3.63 V, QFP
Part NumberLAN91C111
ManufacturerStandard Microsystems
AvailabilityAvailable to order — request a quote
Specifications
Ic MountingSurface Mount
RohscompliantYES
Supported StandardsIEEE 802.3, IEEE 802.3u
Hazardousfalse
RohsphthalatescompliantYES
Product Range-
IscanonicalY
Device TypeMAC & PHY Ethernet Controller
MslMSL 3 - 168 hours
Operating Temperature Max85 °C
SvhcNo SVHC (04-Feb-2026)
Supply Voltage Max3.63 V
Controller Ic Case StyleQFP
Ic Interface TypeMII
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 LAN91C111 available?
We can source LAN91C111 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 LAN91C111 by Standard Microsystems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If LAN91C111 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 LAN91C111?
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 LAN91C111?
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.