What this 4000B NOR gate brings to the board
The CD4025BM96 is a triple 3-input NOR gate from the 4000B series, in a 14-SOIC package. It runs on a 3V to 18V supply, draws 1 µA quiescent max, and covers the full -55°C to 125°C military temperature range. That supply flexibility means it works in battery gear, industrial 12V rails, or mixed-voltage backplanes where a 5V-only 74HC part would need a regulator.
Supply range and temperature — where it fits
The 3V to 18V supply range is the headline feature of the 4000B series. It lets you run this gate directly off a 12V battery bus or a 5V rail without a level translator. The -55°C to 125°C operating range covers avionics, downhole tools, and outdoor telecom cabinets where commercial-grade parts would drift or latch up. Output drive is 3.4 mA per pin — enough for a CMOS input or a small LED, but not for a relay coil or a long twisted pair.
Speed and loading — the timing budget
Propagation delay is 90 ns at 15V with a 50 pF load.
Lifecycle and compliance
The CD4025BM96 is listed as Active and ROHS3 compliant. No NRND or LTB flags. The 4000B series has been in production for decades and remains a staple for designs that need wide voltage range and military temperature. No official successor or second-source alternate is listed in the record, but the 4000B logic family is widely second-sourced across multiple manufacturers.