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Renesas Electronics QS3126QG8 — Crystals & Oscillators

QS3126QG8 Bus Switch – Renesas, Active, 16-QSOP

MPNQS3126QG8
End of Life

Renesas Electronics QS3126QG8, Bus Switch, 1 x 1:1 circuit, 4 independent switches, 4.75V ~ 5.25V single supply, -40°C to 85°C, 16-QSOP package

$0.64Ref. price · indicative, final on quote
Renesas Electronics QS3126QG8 datasheet (PDF)
Packaging16-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

QS3126QG8 specifications
ParameterValue
TypeBus Switch
MountingSurface Mount
Voltage4.75V ~ 5.25V
Voltage supply sourceSingle Supply
Operating temperature-40°C ~ 85°C
Circuit1 x 1:1
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SSOP (0.154\", 3.90mm Width)
Independent circuits4

Product details

Bus switch for 5V signal routing

The QS3126QG8 is a Renesas bus switch configured as 1 x 1:1 with four independent circuits, each acting as a low-impedance pass gate for digital signals on a 4.75V to 5.25V rail.

Single-supply operation from 4.75V to 5.25V means the switch passes signals rail-to-rail within that range; it is not a level shifter for 3.3V or 1.8V domains without external translation.

Supplied in a 16-SSOP (0.154-inch, 3.90mm width) body, the device is also designated as 16-QSOP — a common footprint for bus switches in this pin count.

ROHS3 compliant, no exemption conflicts for EU or California regulatory filings.

Frequently asked questions

Is QS3126QG8 obsolete or end-of-life?

No PCN or EOL notice has been issued.

Can I use QS3126QG8 as a level shifter?

Not directly. The switch operates on a single 4.75V to 5.25V supply and passes signals rail-to-rail within that range. For 3.3V-to-5V translation, a dedicated level shifter or a bus switch with dual-supply capability is required.