Maxim Integrated · Electronic Components
78Q2123
Ethernet Controller, MicroPHY, Ethernet PHY Transceiver, IEEE 802.3, 3 V, 3.6 V, QFN, 32 Pins
Part Number78Q2123
ManufacturerMaxim Integrated
LifecycleStocked
AvailabilityAvailable to order — request a quote
Specifications
Ic MountingSurface Mount
RohscompliantYES
Supported StandardsIEEE 802.3
Hazardousfalse
RohsphthalatescompliantYES
Product Range-
IscanonicalY
Device TypeEthernet PHY Transceiver
MslMSL 1 - Unlimited
Operating Temperature Max70 °C
SvhcNo SVHC (04-Feb-2026)
Supply Voltage Max3.6 V
Controller Ic Case StyleQFN
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 78Q2123 available?
We can source 78Q2123 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 78Q2123 by Maxim Integrated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 78Q2123 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 78Q2123?
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 78Q2123?
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.