Allen-Bradley 42JS-D2MPA2-A2 Photoelectric Sensor

Allen-Bradley 42JS-D2MPA2-A2 Photoelectric Sensor is a Visisight diffuse-mode optical sensor that uses a red visible LED for target indication within a 250 mm sensing range. It operates on 10-30 V DC and provides two complementary LO/DO outputs in a PNP configuration, delivered over a 2 m cable (A2 variant). Designed for diffuse reflection sensing, it detects targets by beam interruption on non-reflective surfaces and offers both Light-Operate and Dark-Operate logic to accommodate different materials and backgrounds. The 42JS family is listed as End of Life by Rockwell Automation, with a discontinuation date of December 31, 2026, so buyers should evaluate current 42JS alternatives or other PhotoSwitch sensors for new designs. Key specifications include: sensing range 250 mm, supply voltage 10-30 V DC, PNP output, red indicator LED, two LO/DO outputs, and a 2 m cable length.