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E3T-FD12 2M Omron Ultra-Compact Diffuse-Reflective Photoelectric Sensor NPN Output Dark-ON 5-30mm Adjustable Sensing Distance Red Light IP67 2m Cable
E3T-FD12 2M Product Overview
The E3T-FD12 2M is an ultra‑compact, ultra‑thin built‑in amplifier photoelectric sensor from Omron's E3T series, featuring a diffuse‑reflective sensing method. The E3T-FD12 2M's sensor housing measures just 12×24×3.5mm, made of PBT material with a 2‑meter PVC oil‑resistant cable. The sensing distance is adjustable from 5 to 30mm via a potentiometer, utilizing a red LED light source (650nm wavelength). The output of the E3T-FD12 2M is NPN open collector with Dark‑ON operation mode. Response time is less than 1ms, with an IP67 protection rating. The E3T-FD12 2M is widely used in semiconductor wafer tray positioning, blister pack jam detection, and micro‑assembly robotic gripper sensing.
E3T-FD12 2M Core Features
Ultra‑Compact and Ultra‑Thin Design：The E3T-FD12 2M features a flat PBT housing with a thickness of just 3.5mm. Its ultra‑compact size allows installation in tight spaces where traditional sensors cannot fit, ideal for semiconductor manufacturing and micro‑assembly robotics.
Diffuse‑Reflective Sensing with Adjustable Distance：The E3T-FD12 2M uses a diffuse‑reflective sensing method with an adjustable detection range of 5 to 30mm via potentiometer. The diffuse‑reflective method detects target objects directly without requiring a reflector, simplifying installation.
NPN Output with Dark‑ON Operation：The E3T-FD12 2M's output is NPN open collector with Dark‑ON operation mode (output ON when light is interrupted), making it ideal for object presence and blockage detection.
IP67 Protection Rating：The E3T-FD12 2M is IP67 rated for dust‑tight and temporary immersion protection, ensuring stable operation in harsh industrial environments.
Fast Response Time：The E3T-FD12 2M has a response time of less than 1ms, enabling precise detection in high‑speed automation and packaging lines.
Red LED Light Source：The E3T-FD12 2M uses a red LED light source (650nm) with a clearly visible beam spot for easy alignment and setup. The 2‑meter pre‑wired cable (PVC oil‑resistant) provides flexible installation options.
E3T-FD12 2M Applications
The E3T-FD12 2M is ideally suited for a wide range of precision detection applications, including:
Semiconductor Wafer Tray Positioning：The ultra‑thin profile of the E3T-FD12 2M allows installation in tight spaces of wafer handling robots for non‑contact detection of wafer tray positioning, preventing wafer damage.
Blister Pack Jam Detection：The E3T-FD12 2M monitors conveyor transition zones in high‑speed pharmaceutical packaging lines for jammed blister packs. The 1ms fast response and IP67 rating resist periodic washdowns.
Micro‑Assembly Robotic Gripper Sensing：The E3T-FD12 2M detects whether miniature components are successfully gripped in micro‑assembly robot end‑effectors. The lightweight design (~20g) and flexible 2m cable integrate seamlessly into gripper mechanisms.
Electronics Manufacturing：Detects the presence of circuit boards, connectors, and other miniature components for precise assembly.
Packaging and Conveyor Lines：Detects objects passing through or arriving at position to trigger subsequent actions.
E3T-FD12 2M Key Advantages
Ultra‑Thin Design for Space‑Constrained Installation：At just 3.5mm thick, the E3T-FD12 2M is one of the thinnest photoelectric sensors available, fitting where traditional sensors cannot.
Built‑In Amplifier, No External Processing Unit Needed：The built‑in amplifier of the E3T-FD12 2M outputs switching signals directly, eliminating the need for separate amplifier units and reducing system complexity and cost.
Adjustable Sensing Distance for Flexible Target Adaptation：The 5‑30mm sensing range with potentiometer adjustment allows users to fine‑tune the E3T-FD12 2M's sensitivity based on object color, material, and size.
IP67 Protection for Harsh Environments：The E3T-FD12 2M is fully dust‑tight and resistant to temporary immersion, ensuring reliable performance in washdown‑prone applications like pharmaceutical packaging and food processing.
1ms Fast Response for High‑Speed Lines：The E3T-FD12 2M's response time under 1ms keeps pace with high‑speed automation, ensuring no missed detections on fast‑moving production lines.
Omron Original Quality for Long‑Term Stability：As a global leader in industrial automation, Omron photoelectric sensors like the E3T-FD12 2M are renowned for high reliability and long service life. The PBT housing and oil‑resistant cable ensure stable operation in harsh industrial environments.
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FAQ
1. What is E3T-FD12 2M？
The E3T-FD12 2M is an ultra-compact, ultra-thin photoelectric sensor with a built-in amplifier from OMRON. It uses a diffuse-reflective sensing method, emitting red light and detecting objects by receiving reflected light. Its flat, slim design makes the E3T-FD12 2M ideal for installation in tight spaces.
2. What are the key specifications of E3T-FD12 2M？
Key specifications of the E3T-FD12 2M include:
Sensing Distance: 5 ~ 30mm (based on 50×50mm white paper)
Sensing Method: Diffuse-reflective
Output Type: NPN output
Operation Mode: Dark-ON
Supply Voltage: DC 12V ~ 24V
Light Source: Red LED (650nm wavelength)
Response Time: < 1ms
Protection Rating: IP67
Connection: 2-meter pre-wired cable
3. What package and material does E3T-FD12 2M use？
The E3T-FD12 2M features an ultra-thin, flat profile with body dimensions of approximately 12mm × 24mm × 3.5mm, making it ideal for installation in tight or confined spaces. The housing is made of PBT (Polybutylene Terephthalate) for durability. The E3T-FD12 2M is rated IP67 for excellent dust and water resistance.
4. What applications is E3T-FD12 2M suitable for？
The E3T-FD12 2M is widely used in industrial automation for object detection:
Electronic component assembly: Detecting micro-components
Packaging machinery: Detecting labels, packaging materials, transparent objects
Battery industry: Suitable for rechargeable battery industry applications
Automotive manufacturing: Component positioning and inspection
Quality inspection: Product defect detection, position verification
Logistics sorting: Item presence detection and counting
5. What development tools support E3T-FD12 2M？
As a standard industrial sensor, the E3T-FD12 2M does not require dedicated software tools. It can be directly connected to PLC (Programmable Logic Controller) input ports, relays, or other control circuits. The sensor features an operation indicator LED for easy on-site adjustment and operation verification.
6. What is the operating temperature range of E3T-FD12 2M？
The ambient operating temperature range of the E3T-FD12 2M is -25°C to 55°C.
7. What are the key features of E3T-FD12 2M？
Ultra-compact, ultra-thin design: The E3T-FD12 2M is only 3.5mm thick, suitable for tight spaces
IP67 protection rating: Dust and water resistant for harsh industrial environments
Adjustable sensing distance: The E3T-FD12 2M has a 5~30mm adjustable range
Built-in amplifier: No external amplifier required, simple wiring
Fast response: Response time < 1ms, suitable for high-speed detection
8. What is the output mode of E3T-FD12 2M？
The output configuration of the E3T-FD12 2M is NPN Dark-ON. This means the output turns ON when no reflected light is received (object present blocking light) , and turns OFF when reflected light is received (no object present).
9. What are the alternative models for E3T-FD12 2M？
Alternative models in the same series as the E3T-FD12 2M include:
E3T-FD11 2M: Same series diffuse-reflective, Light-ON version
E3T-FD12R 2M: Same series diffuse-reflective, Dark-ON output, may have special features
E3T-FL12 2M: Same series BGS (Background Suppression) reflective, Dark-ON output
Other series models: E3T-FT12 2M (Through-beam), E3T-SL12 2M (Convergent reflective)
10. What are the design considerations when using E3T-FD12 2M？
Sensing Object: The rated sensing distance of 5~30mm for the E3T-FD12 2M is specified for high-reflectivity white objects. Distance will be significantly shorter for black, transparent, or low-reflectivity objects
Mounting: The E3T-FD12 2M features an ultra-thin flat profile and can be mounted with M2 screws— ensure the sensing surface is not blocked or contaminated
Ambient Light Interference: Avoid direct exposure of the E3T-FD12 2M's sensing surface to strong ambient light (sunlight, intense lighting)
Wiring: NPN output is 3-wire (Brown: V+, Blue: V-, Black: Signal output) — observe correct polarity when wiring
- Model:
- E3T-FD12 2M
- Brand:
- OMRON
- Sensor Type:
- Built-in Amplifier Photoelectric Sensor
- Sensing Method:
- Diffuse-Reflective
- Connection Method:
- Pre-Wired, 2m Cable
- Sensing Distance:
- 5 - 30mm(adjustable)
- Output Type:
- NPN Open Collector
- Operation Mode:
- Dark-ON
- Light Source:
- Red LED (650nm)
- Operating Temperature:
- -25℃ ~ 55℃
- Applications:
- Semiconductor manufacturing, Pharmaceutical packaging, Micro-assembly robotics, Electronic component detection, Conveyor object detection
