SICK WTB2S-2N1330 Photoelectric Sensor with Background Suppression
SICK WTB2S-2N1330 photoelectric sensor with background suppression is a compact proximity sensor engineered for precise detection of very small objects in tight installation spaces. It uses visible red PinPoint LED technology to achieve stable and accurate sensing while effectively ignoring backgrounds beyond the defined detection zone. With a short sensing distance and a slim rectangular housing, this sensor is well suited for applications where space, accuracy, and reliability are essential. Its durable construction and industrial-grade design make it a dependable choice for automated production and inspection tasks.
The SICK WTB2S-2N1330 is designed to maintain reliable object detection even when targets vary in color or reflectivity. By precisely controlling the sensing area, it minimizes false signals caused by nearby surfaces or machine components. The fast response time supports high-speed processes, while the sealed housing allows stable operation in demanding industrial environments. Its fixed setup simplifies installation and reduces adjustment time, helping operators achieve consistent detection performance, improved process reliability, and reduced downtime in precision-focused automation systems.
Why SICK WTB2S-2N1330?
The SICK WTB2S-2N1330 is chosen when precision matters more than distance. Its ability to reliably detect extremely small objects within a tightly controlled sensing zone makes it ideal for compact machines and high-accuracy automation. The combination of background suppression, a sharply focused light spot, and a slim industrial housing delivers stable performance where conventional sensors struggle, helping engineers design cleaner, more efficient, and more reliable production systems.
What problem does it solve?
The SICK WTB2S-2N1330 solves the challenge of false detections in crowded or reflective environments. In applications where parts are small, closely spaced, or surrounded by metallic or glossy surfaces, standard sensors often misread backgrounds as targets. This model precisely separates the object from its surroundings, ensuring consistent detection, fewer process errors, and improved quality control in high-speed and space-limited automation lines.
Key Features & Specifications – SICK WTB2S-2N1330: Part Number 1064578
| Feature | Details | Benefits |
|---|---|---|
| Sensor Type | Photoelectric proximity sensor | Enables non-contact detection with high reliability and long service life |
| Detection Principle | Background suppression | Prevents false detections caused by reflective or moving backgrounds |
| Sensing Range | Typical 3–30 mm, maximum up to 36 mm | Ideal for precise short-range detection of small components |
| Light Source | Visible red PinPoint LED (640 nm) | Provides a clearly defined light spot for accurate alignment and detection |
| Light Spot Size | Approx. Ø 3 mm at 15 mm distance | Allows stable detection of very small or narrow objects |
| Switching Output | NPN, light switching | Easy integration with standard PLC and control systems |
| Response Time | < 0.4 ms | Supports high-speed automation and fast-moving production lines |
| Switching Frequency | Up to 1,200 Hz | Ensures reliable performance in rapid detection cycles |
| Housing Design | Compact rectangular housing | Fits into tight installation spaces and miniature machines |
| Housing Material | Plastic (ABS/PC) | Lightweight yet robust for long-term industrial use |
| Enclosure Rating | IP67 | Reliable operation in dusty or wash-down industrial environments |
| Supply Voltage | 10–30 V DC | Compatible with common industrial power supplies |
| Ambient Operating Temperature | –25 °C to +50 °C | Stable performance across a wide range of industrial conditions |
| Special Application Focus | Detecting very small objects | Optimized for electronics, precision assembly, and packaging tasks |
Download SICK WTB2S-2N1330 (1064578) Datasheet
Commercial Information – SICK WTB2S-2N1330
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084316999 |
| Weight | 34.6 g |
| Country of Origin | Germany |
The Applications
1. Micro-Component Detection in Electronics Assembly
In electronics production, verifying the presence of very small components such as pins, clips, or micro-connectors is essential to avoid downstream failures. The SICK WTB2S-2N1330 is frequently integrated near placement or insertion points to confirm that each part is correctly positioned before the next process step. Its background suppression capability prevents reflections from circuit boards or metal fixtures from causing false signals. The sharply defined sensing area allows reliable detection of narrow targets, while the fast switching response supports high-speed assembly equipment without affecting cycle time or productivity.
2. Small Item Presence Checks in Automated Packaging
Automated packaging systems often handle small elements like caps, seals, or inserts that must be verified before sealing. The SICK WTB2S-2N1330 is used close to the product flow to confirm item presence with high accuracy. Its short detection range makes it suitable for compact packaging machines, while background suppression ensures conveyors or guide rails are ignored. This reliable detection helps prevent incomplete packages, reduces waste, and supports continuous operation without frequent adjustments, even when packaging materials or product colors vary.
3. Precision Part Detection in Mechanical Assembly Stations
In mechanical assembly environments, thin metal parts or small stamped components are commonly positioned near reflective tooling. The SICK WTB2S-2N1330 is applied to detect these parts without being affected by surrounding fixtures. Its compact housing allows installation directly within tight assembly stations, supporting accurate timing for pressing, fastening, or alignment processes. The consistent output signal improves synchronization with actuators, helping manufacturers achieve repeatable assembly results and reduce the risk of misfeeds or mechanical errors.
4. Inline Inspection of Small Components for Quality Control
Quality control stations often require confirmation that small parts are present and correctly positioned before products move forward. The SICK WTB2S-2N1330 provides stable detection even when component surfaces differ in finish or reflectivity. Its rapid response enables inspection without slowing production, while the robust housing supports reliable operation in environments with vibration or dust. By supplying clear pass-or-fail signals to control systems, the sensor helps maintain consistent quality standards and reduces the likelihood of defects reaching later production stages.