Quad bilateral switch with a wide supply net
The CD4066BMT: Each switch handles bidirectional analog or digital signals, controlled by a logic-level gate input. The 3V to 18V supply range spans legacy 12V industrial rails and modern 3.3V logic, making it a drop-in for mixed-voltage BOMs without a level translator.
The 4000B series is known for wide noise margin at higher supply voltages, so at 12V or 15V the switch thresholds stay clean in a noisy backplane.
No last-time-buy notice or end-of-life bulletin is on file.