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onsemi MC14066BDR2G — Circuit Protection
onsemi

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
MC14066BDR2G datasheet
Packaging14-SOIC (0.154", 3.90mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MC14066BDR2G Technical Specifications
ParameterValue
TypeBilateral, FET Switches
Series4000B
Mounting typeSurface 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. Rated for -55°C to 125°C, this part suits avionics, downhole instrumentation, and outdoor telecom equipment where the temperature envelope is wide.

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. The -55°C to 125°C temperature grade is the full military range — the switch's on-resistance and leakage shift with temperature, but the datasheet curves let you budget the worst-case insertion loss and crosstalk.

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.