OPB841W55Z High-Performance Slot-Type Photointerrupter Module | TT Electronics/Optek Technology 2025-04-22 Discover the OPB841W55Z, a high-performance slot-type photointerrupter module by TT Electronics/Optek Technology. Ideal for industrial, automotive, and consumer electronics with 3.18mm sensing distance, 30V breakdown voltage, and -40 C to 80 C operating range.