The PXF5AER2-0BVA1 is a Fuji Electric 1/8 DIN (48 x 96 mm) compact temperature and process controller with self-tuning and a 50 ms sampling speed. That sampling rate matters when you're controlling a fast-responding process like a small oven or a plastic extruder zone — the controller sees a temperature shift within two mains cycles and can react before the overshoot compounds.
The lifecycle stage is current; Fuji Electric continues to manufacture this order code. No last-time-buy or phase-out notice has been issued.