SICK GTB2F-N1311 Photoelectric Proximity Sensor – Ultra-Precise Small Object Detection
- GTB2F-N1311 is an ultra-compact background suppression photoelectric proximity sensor from SICK, featuring 455 nm blue PinPoint LED technology to accurately detect extremely small objects with high precision.
- Its ultra-slim 3.5 mm housing enables easy installation in confined spaces, making it particularly suitable for SMT equipment, PCB assembly, and compact automation systems.
- The sensor offers a sensing range of 0–15 mm and detects objects as small as 0.1 mm, optimizing performance in electronic component inspection, label detection, film detection, and other small-part applications.
- With an IP67 protection rating, the sensor operates reliably in industrial environments exposed to dust and moisture, it also withstands temporary immersion (1 m / 30 min)
- Industries widely use GTB2F-N1311 in electronics manufacturing, packaging, quality inspection, and pick-and-place robotic systems, where applications demand high accuracy and fast response times.
The SICK GTB2F-N1311 is a 3.5 mm ultra-slim BGS photoelectric sensor with blue PinPoint LED (455 nm), detecting objects as small as 0.1 mm within 0–15 mm range.
Overview of the SICK GTB2F-N1311 Photoelectric Sensor
The GTB2F-N1311 belongs to the SICK G2 series – an ultra-slim flat-design photoelectric sensor optimized for installations in tight spaces. Operating on the background suppression principle, it reliably detects objects in front of the sensor regardless of the reflectance of the background. The blue PinPoint LED (455 nm) creates a focused light spot of Ø3 mm at 8 mm distance, making it especially suitable for detecting very small objects such as electronic components, labels, and thin films.
5 Key Specifications:
- Detection range: 0–15 mm (standard), max. 16 mm
- Light type: Blue PinPoint LED, wavelength 455 nm
- Minimum detectable object (MDO): 0.1 mm
- Enclosure rating: IP67 for dustproof and can withstand immersion in water up to 1 m for 30 minutes.
- Output: NPN, light switching mode, Imax 50 mA
Technical Specifications – SICK GTB2F-N1311
| Parameter |
Value |
| Model |
GTB2F-N1311 |
| Part No. |
1112239 |
| Operating principle |
Photoelectric proximity sensor – Background suppression |
| Detection range |
0–16 mm (Sensing range max.)
0–15 mm (Sensing range typ. on 90% white) |
| Min. detectable object (MDO) |
0.1 mm (at 5 mm distance) |
| Light type |
Blue PinPoint LED, wavelength 455 nm |
| Light spot size |
Ø 3 mm at 8 mm distance |
| Supply voltage |
10–30 V DC |
| Switching output |
NPN, Light switching |
| Output current |
≤ 50 mA |
| Response time |
< 0.625 ms |
| Switching frequency |
800 Hz |
| Repeatability |
0.1 mm |
| Connection |
Cable, 3-wire, 2 m (PVC) |
| Dimensions (W×H×D) |
14 × 24 × 3.5 mm |
| Housing material |
Plastic VISTAL® |
| Enclosure rating |
IP67 |
| Operating temperature |
–20°C to +50°C |
| Storage temperature |
–40°C to +70°C |
| Weight |
25 g |
| Certificates |
EU/UK/ACMA/Moroccan DoC, China RoHS, cRUus |
Data from SICK GTB2F-N1311 Data Sheet
Industrial Applications of the SICK GTB2F-N1311
With its ultra-slim 3.5 mm profile, precision blue PinPoint LED, and ability to detect objects as small as 0.1 mm, the GTB2F-N1311 is ideal for high-precision industrial environments:
- Electronics assembly (SMT/PCB): Detects ultra-small components (ICs, capacitors, inductors) on SMT conveyor lines. The flat 3.5 mm design fits easily between machine modules in confined spaces.
- Food & pharmaceutical packaging: Detects labels, films, and small caps with high precision. IP67 rating allows low-pressure water cleaning. 800 Hz switching frequency handles high-speed conveyors.
- Quality inspection: Detects surface defects, missing elements, or small foreign objects during production. The Ø3 mm light spot provides high positional detection accuracy.
- High-precision automation: Used in pick-and-place robots, small component sorting, and precision positioning applications requiring exact location feedback.
Comparison: GTB2F-N1311 vs Other SICK G2 Models
| Criteria |
GTB2F-N1311 (Flat) |
GTB2S-E1331 (Standard) |
| Dimensions |
14×24×3.5 mm (ultra-slim) |
7.7×21.8×13.5 mm |
| Light type |
Blue 455 nm |
Red 640 nm |
| Detection range |
0–15 mm |
5–30 mm |
| Output mode |
NPN, Light switching |
NPN, Dark switching |
| Best for |
Ultra-confined spaces, tiny objects |
General purpose, small objects |
Choose the GTB2F-N1311 when: you need to install in ultra-confined spaces (only 3.5 mm thick), detect objects as small as 0.1 mm, or require blue light for better color differentiation.
Frequently Asked Questions – SICK GTB2F-N1311 (FAQ)
Q1: How much does the SICK GTB2F-N1311 cost?
A: Pricing depends on quantity and timing. Contact AUMI at hotline 0917 991 589 for the best quote and free technical consultation.
Q2: What industries use the GTB2F-N1311?
A: The sensor is widely used in electronics assembly (SMT/PCB), food and pharmaceutical packaging, automated quality inspection, and pick-and-place robotics requiring high precision.
Q3: What is the difference between GTB2F-N1311 and GTB2S-E1331?
A: The GTB2F-N1311 is a flat-design sensor (3.5 mm thick) with blue light, 0–15 mm range, suited for ultra-confined spaces and very small objects. The GTB2S-E1331 is a standard compact sensor (13.5 mm), uses red light, has a 5–30 mm range, and is better for general-purpose applications.
Q4: Is the GTB2F-N1311 waterproof?
A: Yes. The sensor is rated IP67, meaning it is fully dustproof and can withstand immersion in water up to 1 m for 30 minutes. It suits dusty and humid factory environments.
Q5: Where can I buy the genuine SICK GTB2F-N1311 in Vietnam?
A: AUMI is the official SICK distributor in Vietnam, guaranteeing 100% genuine products with full CO/CQ documentation, official warranty, and 24/7 technical support.
AUMI – Official SICK GTB2F-N1311 Distributor in Vietnam. Genuine warranty, full CO/CQ, 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
📍 Offices:
- Hanoi: B44, Garden Lot, Viet Hung Urban Area, Long Bien
- Ho Chi Minh City: Floor 2, HS Building, 260/11 Nguyen Thai Binh, Tan Binh District
- Da Nang: Floor 9, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
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