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onsemi MC14066BDR2G — Circuit Protection

MC14066BDR2G onsemi Bilateral FET Switch – 14-SOIC, Active

MPNMC14066BDR2G
End of Life

onsemi 4000B series, Bilateral FET Switches, 4 independent SPST circuits, 3V ~ 18V supply, -55°C ~ 125°C, 14-SOIC package

$0.58Ref. price · indicative, final on quote
onsemi MC14066BDR2G datasheet (PDF)
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series4000B
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MC14066BDR2G specifications
ParameterValue
TypeBilateral, FET Switches
Series4000B
MountingSurface Mount
Voltage3V ~ 18V
Voltage supply sourceDual Supply
Operating temperature-55°C ~ 125°C
Circuit1 x 1:1
PackageTape & Reel (TR); Cut Tape (CT)
Case14-SOIC (0.154\", 3.90mm Width)
Independent circuits4

Product details

Quad bilateral switch for analog and digital signal routing

The MC14066BDR2G from onsemi is a quad bilateral FET switch array in the 4000B series, providing four independent SPST (1:1) switches that can pass analog or digital signals bidirectionally. It operates from a 3V to 18V supply, making it compatible with TTL, CMOS, and mixed-voltage logic families without level shifters.

Supply voltage and temperature grade drive BOM fit

The 3V to 18V supply range means the switch can be powered from a single 5V rail or a ±9V dual supply, covering most analog signal swing requirements.

Frequently asked questions

Is MC14066BDR2G a direct replacement for CD4066B?

Yes, the MC14066BDR2G is functionally equivalent to the standard CD4066B quad bilateral switch. Both are 4000B-series parts with the same pinout, supply range, and temperature grade. The onsemi part is a drop-in replacement for the CD4066B in most designs.