E3FDS10B2 Photoelectric Switch Sensor — Compact, reliable diffuse-reflection detection Key benefits — why you need this sensor Non-contact detection reduces wear and maintenance compared with mechanical switches. Compact 18 mm diameter body fits tight spaces and standard M18-style sensor mounts, simplifying installation. 10 cm detection range handles short-range presence and position sensing without extra optics or reflectors. Diffuse reflection mode detects objects with irregular shapes or non-reflective surfaces without precise alignment. NPN normally closed (NC) output and DC transducer compatibility make wiring straightforward for many DC control systems. What this product does (function and performance) Photoelectric switch sensor (model E3FDS10B2) that detects objects using diffuse reflection. Effective detection distance: 10 cm for standard diffuse-reflective targets. Sensor type: diffuse reflection, so it senses light scattered from the target rather than relying on a separate reflector. Output type: NPN, normally closed (NC), suitable for sinking input circuits in DC control systems. Power/output style: DC transducer configuration for direct integration into DC-powered equipment. Practical advantages and problem solving Eliminates the need for contact-based sensors where dust, friction, or mechanical fatigue are concerns. Diffuse reflection reduces setup time and fragility compared with through-beam or reflector-dependent sensors. NPN NC behavior provides a defined safe state when used in systems expecting closed output at rest. Compact diameter enables retrofit into existing assemblies or dense sensor arrays. Compatibility and integration notes Model: E3FDS10B2 — use this exact model when you require diffuse-reflection detection with NPN NC output and a 10 cm sensing range. Size: 18 mm diameter makes it compatible with standard compact sensor mounting options. Designed for DC-powered systems; check your control inputs accept NPN sinking signals and NC logic. Typical applications Conveyor object detection: short-range presence sensing of bottles, boxes, or packages where fast, non-contact detection is needed. Packaging and positioning: detect part presence or staging position for assembly or pick-and-place operations without precise alignment. Robotics and automation: end-of-arm or close-range position sensing for grippers and small actuators where compact size and diffuse sensing simplify installation. What to check before ordering Confirm your control inputs accept NPN (sinking) and normally closed logic. Verify the 10 cm diffuse sensing range fits the target size and surface characteristics in your application. Confirm mounting clearance for an 18 mm diameter sensor body. Specifications (as supplied) Model: E3FDS10B2 Diameter: 18 mm Detection distance: 10 cm Sensing mode: Diffuse reflection Output type: NPN, normally closed (NC) Power/output: DC transducer For reliable, compact short-range sensing where diffuse detection and NPN NC output are required, the E3FDS10B2 offers a straightforward integration path with minimal alignment and low mechanical maintenance.