Technical Overview
The Omron E3T-FD13 2M is an ultrathin diffuse-reflective photoelectric sensor with a built-in amplifier, M2 mounting and a 2 m pre-wired cable. It uses a 650 nm red LED and detects 50 × 50 mm white paper at 5 to 30 mm, with PNP open-collector Light-ON output. The sensor operates from 12 to 24 VDC ±10%, responds within 1 ms, and has IEC IP67 protection. Omron lists the exact model as selling and standard-stock; the inventory marker on the checked listing is 〇 (Omron inventory marker; exact stock quantity not stated).
A compact diffuse-reflective photoelectric sensor with PNP Light-ON output for industrial object detection.
Key Features
- Diffuse-reflective; detects 50 × 50 mm white paper at 5 to 30 mm
- Minimum detectable object 0.15 mm diameter at 10 mm
- PNP open-collector output, Light-ON
- 650 nm red LED; 1 ms maximum operate/reset response
- 12 to 24 VDC ±10% supply; IEC IP67 protection
- M2 mounting and 2 m pre-wired cable
- Packaged weight approximately 20 g
Diffuse-Reflective detection with PNP Light-ON switching and a compact 2 m wired sensor.
Technical Specification Matrix
| Parameter | Value |
| Product type | Ultrathin diffuse-reflective photoelectric sensor with built-in amplifier |
| Sensing method | Diffuse-Reflective |
| Sensing distance | 5 to 30 mm (50 × 50 mm white paper) |
| Minimum sensing object | 0.15 mm min. diameter at 10 mm sensing distance |
| Differential distance | 6 mm max. |
| Light source | Red LED, 650 nm |
| Supply voltage | 12 to 24 VDC ±10%; ripple 10% p-p max. |
| Control output | PNP open collector, 26.4 VDC max., 50 mA max. |
| Residual voltage | 1 V max. at load current below 10 mA; 2 V max. at 10 to 50 mA |
| Operation mode | Light-ON |
| Protective circuits | Output short-circuit, output reverse-polarity and power-supply reverse-polarity protection |
| Response time | 1 ms max. (operate and reset) |
| Ambient illuminance | Incandescent lamp: 5,000 lx max.; sunlight: 10,000 lx max. |
| Protection rating | IEC 60529 IP67 |
| Operating temperature | -25 to +55°C, no icing or condensation |
| Operating humidity | 35 to 85%, no condensation |
| Connection | Pre-wired, 2 m cable |
| Indicators | Operation indicator (orange); stability indicator (green) |
| Mounting and accessories | M2 mounting; instruction manual, M2 × 8 set screws and nuts supplied |
| Housing material | Polybutylene terephthalate (PBT) |
| Lens and display material | Modified polyarylate |
| Physical Weight (kg) | 0.020 (approx., packaged). |
| Dimensions L x W x H (cm) | See the Omron E3T-FD/FT dimension drawing; no consolidated L × W × H value is stated in the ratings text. |
| Supply status | Active; Omron listed this exact model as selling and standard-stock on 2026-10-06. Inventory marker: 〇 (Omron inventory marker; exact stock quantity not stated). |
Suggested applications
Engineering suggestions require suitability checks for your installation.
1. Close-range object presence detection
The diffuse-reflective sensing design supports contact-free detection in compact machinery.
Potential use
Position the target within the specified 5 to 30 mm range and verify detection with the actual surface, color and geometry.
Diffuse-Reflective
PNP
2 m cable
2. Machine automation sensing
The built-in amplifier and 1 ms response support discrete presence sensing in automated equipment.
Potential use
Use a compatible 12 to 24 VDC input and follow Omron mounting and optical-axis alignment guidance.
Photoelectric sensor
1 ms response
IP67