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Surface Mount Miniature Reflective Photomicrosensor from OMRON offer mid-range sensing distance of 3-4mm, ideal for Industrial Systems. Samples available from Anglia

Date Published : 14/05/2023 Share with:

The OMRON EE-SY1201 is an exceptionally compact reflective Photomicrosensor (PMS) with a sensing distance of 3-4mm. A Photomicrosensor, also known as a photointerrupter, is a compact optical sensor that senses objects or object positions. These compact optical devices sense objects or object positions using an optical beam. Photomicrosensors (photointerrupters) are commonly used for object presence and absence detection, disk rotation counting, positioning of moving objects and rotating direction detection.

The EE-SY1201 PMS has been designed to address demand in the market for a surface-mount (SMD) device, OMRON have recognised there is increasing pressure on system size and see a definite market trend to move from leaded PMS solutions to SMD. There is also a real need for a miniature device with a mid-range 3-4mm sensing distance, this new device achieves this mid-range sensing distance within a compact form factor, it achieves this by utilising a built-in lens.

Internal Circuit

The EE-SY1201 miniature SMD PMS is ideal for a wide range of applications including 3D printers, mini printers, e-locks and factory automation equipment. Its diminutive size, of just 3mm x 4mm x 2mm, offers a peak sensing distance of 3mm, so typical applications could include paper pass detection in mini-printers, pin or cylinder rotation in e-locks, media pass detection in cutting machines and filament rotation in 3D printers; alternatively, factory automation equipment and industrial cameras.

Click below for a short overview on the advantages of SMD PMS


For shorter sensing distances, OMRON also offer the EESY1200 which has a sensing distance of just 0.5mm.

Key Features

  • 3-4mm sensing distance
  • Peak sensing distance of 3mm
  • Compact Surface Mount form factor: 3mm x 4mm x 2mm
  • Ideal for a wide range of industrial applications
  • Operating temperature range: -25°C to +85°C


Click here for more information or to buy from Anglia Live.

Click here to download the EE-SY1201 datasheet

Click here to download the Photomicrosensor Selection Guide

Anglia are offering customers FREE samples of the EE-SY1201 Compact Photomicrosensor from OMRON, please fill in the form below to register for samples now.




To register for FREE samples of the EE-SY1201 Compact Photomicrosensor from OMRON, please fill in the form below.

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FREE samples for UK and Ireland customers only, subject to availability.

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