Triple 3-input AND gate in 14-DIP — what the ratings mean for the board
The CD4073BE from the 4000B series is a triple 3-input AND gate in a through-hole 14-DIP package (14-PDIP). It operates across a 3V to 18V supply range, making it a natural fit for battery-powered or unregulated-rail designs where a 5V or 12V rail is already present — no extra regulator needed for the logic. The -55°C to 125°C temperature range qualifies it for military, avionics, and downhole environments; the 1 µA max quiescent current keeps the power budget tight in always-on or battery-backed sections.
Supply voltage and noise margin
The 3V to 18V supply range is the headline differentiator versus 74HC-series gates (2V to 6V). At 15V, the 90ns propagation delay (50pF load) is slower than a 74HC gate at 6V (19ns), but the 4000B family trades speed for wider voltage tolerance and lower power. The input logic levels — low at 1.5V to 4V, high at 3.5V to 11V — give generous noise margin across the supply range, so the gate stays clean even on a noisy 12V rail.
Active and ROHS3 compliant — no LTB risk
The CD4073BE carries an Active lifecycle status and is ROHS3 compliant. There is no last-time-buy notice or end-of-life signal on this part, so it can be specified into a new BOM without obsolescence concern.