Optical Sensors - Photointerrupters - Slot Type - Logic Output

Image Part Number Description / PDF Quantity Rfq
EE-SX4173-P3-Z

EE-SX4173-P3-Z

Omron Electronics Components

SENSOR OPTICAL 5MM MOD SLOT TYPE

458

EE-SX3164-P1

EE-SX3164-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE SLOT

0

EE-SX484

EE-SX484

Omron Electronics Components

SENSOR OPTICAL 3.5MM PCB MOUNT

634

EE-SX4340

EE-SX4340

Omron Electronics Components

SENSOR OPTICAL 4MM MODULE SLOT

13956000

EE-SX4009-P1

EE-SX4009-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE W/CONN

0

EE-SX460-P1

EE-SX460-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE W/CONN

85

EE-SX4163-P1

EE-SX4163-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE SLOT

433

EE-SX3081

EE-SX3081

Omron Electronics Components

SENSOR OPTICAL 5MM PCB MOUNT

3764

EE-SX398

EE-SX398

Omron Electronics Components

SENSOR OPTICAL 3MM PCB MOUNT

0

EE-SX3163-P1

EE-SX3163-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE SLOT

0

EE-SX3162-P2

EE-SX3162-P2

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE SLOT

8

EE-SX3070

EE-SX3070

Omron Electronics Components

SENSOR OPTICAL 8MM PCB MOUNT

140

EE-SX3162-P1

EE-SX3162-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE SLOT

0

EE-SX3239-P2

EE-SX3239-P2

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE

5200

EE-SX3350

EE-SX3350

Omron Electronics Components

SENSOR OPTICAL 5MM MOD SLOT TYPE

0

EE-SX4070

EE-SX4070

Omron Electronics Components

SENSOR OPTICAL 8MM PCB MOUNT

1576

EE-SX4160-W11

EE-SX4160-W11

Omron Electronics Components

SENSOR OPTICAL 9.5MM MODULE SLOT

34

EE-SX3340

EE-SX3340

Omron Electronics Components

SENSOR OPTICAL 4MM MODULE SLOT

899

EE-SX3009-P1

EE-SX3009-P1

Omron Electronics Components

SENSOR OPTICAL 5MM MODULE W/CONN

272

EE-SX301

EE-SX301

Omron Electronics Components

SENSOR OPTICAL 3.4MM PCB MOUNT

26

Optical Sensors - Photointerrupters - Slot Type - Logic Output

1. Overview

Slot-type photointerrupters with logic output are optoelectronic sensors consisting of a light emitter (usually infrared LED) and a photodetector (phototransistor or photodiode) aligned in a U-shaped housing. When an object interrupts the light beam between the slot, the sensor generates a logic-level output signal. These devices are critical in industrial automation, consumer electronics, and medical equipment for position detection, motion control, and object counting.

2. Main Types & Functional Classification

Type Functional Features Application Examples
Transmissive Slot Type Direct light beam interruption detection Encoder position detection
Reflective Slot Type Detects reflected light from target objects Color mark sensing in printing machines
Logic Output Variant Integrated comparator circuit for digital output Industrial safety interlocks

3. Structure & Components

Typical construction includes: - Infrared LED emitter (850-940nm wavelength) - Phototransistor detector with built-in amplifier - Plastic housing forming mechanical slot (0.5-10mm width) - Integrated circuit for signal conditioning - Lead frame for PCB mounting (through-hole or SMD)

4. Key Technical Specifications

Parameter Typical Value Importance
Slot Width 2.0 - 8.0 mm Determines target object size detection
Response Time 2 - 20 s Crucial for high-speed applications
Output Type NPN/PNP Open Collector Compatibility with control systems
Current Transfer Ratio 100-600% Signal strength and reliability
Operating Temperature -40 C to +85 C Environmental durability

5. Application Fields

  • Industrial automation: Conveyor belt object counting
  • Office equipment: Paper jam detection in printers
  • Medical devices: Syringe pump position verification
  • Consumer electronics: Appliance door interlock systems
  • Automotive: Gear position detection in transmission systems

6. Leading Manufacturers & Products

Manufacturer Representative Product Key Features
Omron EE-SX671 Miniature slot (1.7mm), 10 s response time
Vishay VESPE-2020 High-temperature resistance (-40 C to +125 C)
STMicroelectronics VN8905 Integrated logic output with hysteresis

7. Selection Guidelines

Key considerations: - Required slot width vs target object dimensions - Environmental factors (dust, vibration, temperature) - Electrical compatibility with host system - Mechanical mounting constraints (through-hole vs SMD) - Required detection speed and output response time - EMI/RFI immunity for industrial environments

8. Industry Trends

Current developments include: - Miniaturization for mobile device integration - Smart sensors with embedded diagnostics - Wireless-enabled models for IoT applications - Improved optical efficiency through GaAlAs LEDs - Multi-channel integration for parallel detection

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