Photoelectric Proximity Sensor GTB2F-N1111 SICK 18 mm NPN IP67
Overview:
The GTB2F-N1111 from SICK is a background suppression photoelectric proximity sensor in the ultra-slim G2 Flat series. With a sensing range of 1–18 mm, an extremely small PinPoint light spot of Ø 2.5 mm, and very low hysteresis (< 0.5 mm), this model is specially designed for reliable detection of small components, high-precision positioning in microelectronics, SMD assembly, and robotics. Its compact dimensions of 14 × 24 × 3.5 mm, NPN output, and IP67 rating make it an excellent choice for applications requiring high accuracy and limited installation space.
Product Overview of the Photoelectric Proximity Sensor GTB2F-N1111
The GTB2F-N1111 belongs to SICK’s G2 Flat series and utilizes background suppression technology. This allows the sensor to reliably detect objects within a defined sensing area while effectively ignoring backgrounds beyond that range.
Its standout features are the ultra-small PinPoint light spot (Ø 2.5 mm at 15 mm) combined with hysteresis below 0.5 mm, delivering exceptionally sharp switching edges and high repeatability (0.1 mm).
With an ultra-slim 3.5 mm housing thickness and lightweight design of only 22 g, the sensor is ideal for integration into tight spaces, robot grippers, and high-speed microelectronics production lines.
Key Features
- Sensing range: 1 mm … 18 mm (max.), 1–15 mm (standard, 90% remission)
- Extremely small light spot: Ø 2.5 mm at 15 mm
- Minimum detectable object: 0.1 mm (at 5 mm)
- Very low hysteresis: < 0.5 mm – for sharp and stable position detection
- NPN output, IP67 protection, operating temperature –20°C to +50°C
Technical Specifications – GTB2F-N1111
| Parameter |
Value |
| Model |
GTB2F-N1111 |
| Part No. |
1093724 |
| Functional principle |
Photoelectric proximity sensor |
| Functional principle detail |
Background suppression |
| Dimensions (W × H × D) |
14 × 24 × 3.5 mm |
| Sensing range max. |
1 mm … 18 mm |
| Sensing range |
1–15 mm (90% remission, DIN 5033) |
| Minimum detectable object (MDO) |
0.1 mm (at 5 mm) |
| Light source |
Visible red light (PinPoint LED), 660 nm |
| Light spot size |
Ø 2.5 mm (at 15 mm) |
| Adjustment |
None |
| Supply voltage (UB) |
10–30 VDC |
| Ripple |
< 5 Vpp |
| Current consumption |
20 mA (no load) |
| Switching output |
NPN |
| Switching mode |
Light switching |
| Output current |
≤ 50 mA |
| Response time |
< 0.625 ms (resistive load) |
| Switching frequency |
800 Hz (light/dark ratio 1:1) |
| Connection type |
3-wire cable, 2 m |
| Circuit protection |
A (reverse polarity) + C (interference suppression) + D (short-circuit protected) |
| Housing material |
Plastic, VISTAL® |
| Optics material |
Plastic, MABS |
| Weight |
22 g |
| Enclosure rating |
IP67 |
| Repeatability |
0.1 mm |
| Hysteresis |
< 0.5 mm |
| Ambient operating temperature |
–20°C … +50°C |
| Ambient storage temperature |
–40°C … +70°C |
| Certifications |
EU/UK/ACMA/Morocco CoC, China RoHS, cRUus |
Source: SICK Datasheet GTB2F-N1111, 2026. Download datasheet PDF
Industrial Applications of the GTB2F-N1111
- Microelectronics & Semiconductors: The tiny Ø 2.5 mm light spot and < 0.5 mm hysteresis provide superior performance for detecting small SMD components, inspecting IC chips, resistors, and capacitors on PCBs in high-speed assembly lines.
- High-Precision Positioning: Extremely low hysteresis ensures stable and sharp detection edges, ideal for CNC end-position verification, straightness inspection of small parts, and short-distance measurements requiring high repeatability.
- Packaging & Food Industry: Background suppression combined with 800 Hz switching frequency enables reliable detection of small products on fast conveyors without interference from the conveyor belt or background packaging.
- Robotics & Compact Automation: The ultra-slim 3.5 mm housing and 22 g weight allow easy integration into small grippers and 6-axis robot arms without compromising workspace.
- Pharmaceutical & Medical: IP67 rating and stable 1–15 mm sensing range support detection of tablets, small vials, and packaging in cleanroom environments with strict hygiene requirements.
AUMI has supplied the GTB2F-N1111 for electronics component inspection projects in industrial zones in Hanoi, Bac Ninh, and Binh Duong. It is particularly well-suited for applications requiring a small detection spot and very low hysteresis for precise SMD component positioning.
Comparison: GTB2F-N1111 vs GTB2F-N1131
The G2 Flat series from SICK offers multiple sensing range variants. The GTB2F-N1111 and GTB2F-N1131 share the same housing dimensions and operating principle but differ in sensing range, light spot size, and hysteresis:
| Parameter |
GTB2F-N1111 |
GTB2F-N1131 |
| Part No. |
1093724 |
1093725 |
| Sensing range (max.) |
18 mm |
35 mm |
| Sensing range (standard) |
1–15 mm |
1–30 mm |
| Light spot size |
Ø 2.5 mm (at 15 mm) |
Ø 4 mm (at 30 mm) |
| Hysteresis |
< 0.5 mm |
< 2 mm |
| Switching mode |
Light switching |
Light switching |
| Output |
NPN |
NPN |
| Dimensions |
14 × 24 × 3.5 mm |
14 × 24 × 3.5 mm |
| Enclosure rating |
IP67 |
IP67 |
| Recommended for |
Ultra-small object detection |
Longer distance detection |
Conclusion:
- Choose the GTB2F-N1111 for detecting small components, PCBs, SMD parts, or applications requiring high positional accuracy.
- Choose the GTB2F-N1131 when a longer sensing range is needed and a very small light spot is not critical.
Frequently Asked Questions (FAQ)
Q1: What is the operating principle of the GTB2F-N1111?
The GTB2F-N1111 uses background suppression technology, allowing it to detect objects within a defined distance while ignoring the background behind them.
Q2: What is the sensing range of the GTB2F-N1111?
The sensor has a maximum sensing range of 1 to 18 mm. The standard operating range is 1–15 mm with a 90% reflective white target.
Q3: What applications is the GTB2F-N1111 suitable for?
This model is ideal for detecting small electronic components, PCB inspection, small mechanical parts, robot pick-and-place applications, and any process requiring high detection precision.
Q4: Can the GTB2F-N1111 replace the GTB2F-N1131?
Both models share the same housing dimensions and connection type, making them mechanically interchangeable. However, the N1111 (18 mm sensing range) cannot replace the N1131 (35 mm sensing range) in applications requiring detection distances beyond 18 mm. Conversely, the N1131 is not a suitable replacement for the N1111 in applications demanding low hysteresis (< 0.5 mm) and a smaller light spot.
Q5: Does the GTB2F-N1111 meet industrial protection standards?
Yes. The sensor has an IP67 rating, making it suitable for harsh industrial environments with dust and moisture.
Contact for Purchasing the GTB2F-N1111 Photoelectric Proximity Sensor
AUMI – Official authorized distributor of SICK in Vietnam. Full manufacturer warranty, complete CO/CQ documentation, and 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
Addresses:
- Hanoi: B44, Villa Area, Viet Hung Urban Area, Viet Hung Ward
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh, Bay Hien Ward
- Da Nang: 9th Floor, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
