Panasonic EX-23 Ultra-compact Photoelectric Sensor

USD 50.16

Ultra-compact thru-beam sensor with 2m range, detecting 3mm objects. Features 0.5ms response, IP67, 12-24VDC NPN output, and side sensing for tight spaces.

SKU Pananonic-EX-23 Category
Top Brands > Panasonic > Panasonic Photoelectric Sensors

Panasonic EX-23 Ultra-compact Photoelectric Sensor

Model Identifier EX-23
Official Part Number EX-23
GTIN Standard NA

Technical Overview

Ultra-compact thru-beam sensor with 2m range, detecting 3mm objects. Features 0.5ms response, IP67, 12-24VDC NPN output, and side sensing for tight spaces.

Key Features

  • Ultra-compact, space-saving design (8.2 mm thickness).
  • Thru-beam side sensing method for reliable detection.
  • Sensing range of up to 2 meters.
  • Detects minimum opaque objects of 3mm diameter.
  • Visible Red LED light source.
  • NPN open-collector transistor output (Max 50 mA sink current).
  • Supply voltage: 12 to 24 V DC ±10% (Ripple P-P 10% or less).
  • Fast response time of 0.5 ms or less.
  • IP67 protection rating against dust and water ingress.
  • Incorporated short-circuit protection for output.
  • Equipped with a continuously variable sensitivity adjuster on the emitter.
  • Operation (Orange LED) and Stability (Green LED) indicators on the receiver.
  • Robust housing made of Polyethylene terephthalate and lens of Polyarylate.
  • Light-ON/Dark-ON selectable operation mode.
  • CE, UKCA, and UL Recognition certifications.

Ultra-compact design (8.2mm thick) with a 2-meter thru-beam sensing range, capable of precisely detecting minute objects (Ø3mm) with high repeatability in harsh IP67 rated environments.

Technical Specification Matrix

ParameterValue
Product TypeUltra-compact Photoelectric Sensor
Sensing MethodThru-beam [Side sensing]
Sensing Range2 m (6.562 ft)
Sensing Object (Min. Dia.)3 mm (0.118 in) opaque object
Repeatability (perpendicular to sensing axis)0.05 mm (0.002 in) or less
Supply Voltage12 to 24 V DC ±10% (Ripple P-P 10% or less)
Current Consumption (Emitter)10 mA or less
Current Consumption (Receiver)10 mA or less
Output TypeNPN open-collector transistor
Maximum Sink Current50 mA
Applied Voltage (Output)30 V DC or less (between output and 0 V)
Residual Voltage (Output)2 V or less (at 50 mA sink current), 1 V or less (at 16 mA sink current)
Short-circuit ProtectionIncorporated
Response Time0.5 ms or less
Protection RatingIP67 (IEC)
Ambient Temperature-25 to +55 °C (-13 to +131 °F) (No dew condensation or icing allowed)
Storage Temperature-30 to +70 °C (-22 to +158 °F)
Ambient Humidity35 to 85 % RH (Storage: 35 to 85 % RH)
Ambient IlluminanceIncandescent light: 3,000 lx or less at light-receiving face
Voltage Withstandability1,000 V AC for 1 min (between all supply terminals connected together and enclosure)
Insulation Resistance20 MΩ or more (with 250 V DC megger between all supply terminals connected together and enclosure)
Vibration Resistance10 to 500 Hz frequency, 3 mm amplitude (20 G max.) in X, Y and Z directions for 2 hours each.
Shock Resistance500 m/s² (50 G approx.) in X, Y and Z directions for 3 times each.
Enclosure MaterialPolyethylene terephthalate
Lens MaterialPolyarylate
Light SourceRed LED (modulated)
Cable0.1 mm² 3-core (emitter: 2-core) cabtyre cable, 2 m (6.562 ft) long.
Physical Weight (kg)0.04
Dimensions L x W x H (cm)2.2 x 0.82 x 1.05

Industrial Applications

1. High-Speed Small Part Verification in Automated Assembly

The EX-23's rapid 0.5ms response time and ability to detect objects as small as 3mm enable it to accurately and quickly verify the presence or absence of tiny components, such as electronic chips or fasteners, on fast-moving conveyor systems. Its ultra-compact form factor allows for seamless integration into existing, space-constrained automated assembly machinery.

Problem Solved

Ensures precise part verification at high production speeds, minimizing assembly errors and improving throughput in manufacturing processes involving miniaturized components.

High-speed detectionMiniature object sensingConveyor automationQuality controlAssembly line0.5ms response3mm object detection

2. Robust Object Presence Detection for Industrial Gate Security

With an IP67 rating for environmental protection and a 2-meter thru-beam sensing range, the EX-23 reliably detects the passage of personnel or equipment through industrial gates, doors, or access points. Its durable construction withstands dusty, wet, or moderately harsh factory environments, providing a dependable solution for safety and security protocols.

Problem Solved

Provides robust and long-lasting presence detection for safety and security applications in challenging industrial environments, effectively resisting environmental factors like dust and water.

Industrial safetyAccess controlEnvironmental resistanceIP67Thru-beam sensorPresence detection2m sensing range

3. Precision Edge Alignment and Loop Control for Continuous Material Processing

The EX-23's compact dimensions, precise 3mm minimum object detection, and 0.05mm repeatability make it ideal for accurately monitoring the edge of thin, continuous materials like textiles, paper, or film during manufacturing. This ensures proper web alignment and tension control, critical for maintaining product quality and reducing material waste in web-based processing machinery.

Problem Solved

Maintains tight control over material positioning and tension in continuous processing lines, crucial for achieving high quality and efficiency in textile, paper, and film manufacturing.

Edge detectionLoop controlMaterial handlingWeb guidingRepeatabilityTextile machineryPaper processing0.05mm repeatabilitySide sensing
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