Name: Omron E3T-ST13 2M Ultracompact Through-Beam Photoelectric Sensor - INOSAKI
SKU: Omron-E3T-ST13 2M
Price: 57.51 USD
Availability: InStock

Technical Overview

The Omron E3T-ST13 2M is an ultra-compact, ultra-thin photoelectric sensor equipped with a built-in amplifier, engineered for reliable through-beam sensing in space-restricted industrial environments. Designed for precision, it utilizes a highly visible 650 nm red LED light source capable of object detection up to a 1-meter sensing distance. It features a robust thermoplastic P.B.T. polymer housing and a denatured polyarylate lens, fortified with an IP67 protection rating to withstand harsh environmental factors like dust and water. Delivering high-speed 1 ms response times and a PNP Light-ON digital output, it comes pre-wired with a 2-meter cable for immediate integration into automated processes, robotics, and high-speed packaging machinery.

Key Features

Ultra-compact, side-view block design optimized for confined installation spaces
Reliable through-beam sensing method with a built-in amplifier
1-meter sensing distance powered by a high-visibility red LED (650 nm) light source
Rapid 1 ms response time suitable for high-speed manufacturing lines
Thermoplastic P.B.T. housing with M2 screw through-hole mounting
IP67 degree of protection ensures resilience in dusty and wet environments
Pre-wired with a 2-meter cable for straightforward electrical connection

Technical Specification Matrix

Parameter	Value
Sensing Method	Through-beam
Sensing Distance	1 m
Output Configuration	PNP (Light-ON)
Supply Voltage	12 to 24 VDC
Current Consumption	Emitter: 10 mA max. / Receiver: 20 mA max.
Light Source	Red LED (650 nm)
Response Time	1 ms max.
Housing Material	Thermoplastic P.B.T. Polymer
Degree of Protection	IP67
Operating Temperature Range	-25°C to 55°C
Connection Method	Pre-wired (2m cable)

Industrial Applications

1. High-Speed PCB Conveyor Detection

In SMT (Surface Mount Technology) assembly lines, detecting the presence of low-profile printed circuit boards on narrow conveyors is critical. The E3T-ST13 2M's ultra-compact, side-view footprint allows it to be discreetly installed inside cramped conveyor frames without impeding machinery.

Problem Solved

Prevents PCB collisions or jam-ups by accurately detecting fast-moving boards at processing stations where standard-sized photoelectric sensors are too bulky to fit.

SMT AssemblyPCB Detection1ms Response TimeUltra-compact SensorPNP Output

2. Automated Pharmaceutical Vial Sorting

High-speed pharmaceutical sorting machines require precise counting of small, often translucent vials over a defined track. The through-beam method guarantees detection over a 1m span, outperforming diffuse sensors that struggle with clear objects.

Problem Solved

Ensures zero miscounts of fast-moving translucent vials or pill containers, maintaining inventory accuracy and process synchronization in pharmaceutical packaging.

Pharmaceutical PackagingThrough-beam SensingTranslucent Object DetectionRed LED 650nm

3. Robotic End-Effector Part Verification

Mounted directly onto the end-of-arm tooling of a pick-and-place robot, the sensor verifies the successful gripping of small mechanical components before final assembly. The ultra-light P.B.T. housing minimizes the payload burden on the robot.

Problem Solved

Confirms successful part acquisition in tight automated assembly cells, preventing 'empty' placement cycles, machinery damage, and reducing overall scrap rates.

Robotic End-EffectorPart VerificationIP67 ProtectionP.B.T. HousingAutomated Assembly