Panasonic EX-11SEA-PN Ultra-slim Photoelectric Sensor

Technical Overview

Ultra-slim 3.5mm thick photoelectric sensor with 150mm sensing range, 1.0mm min. object detection, PNP output, and IP67 protection. Fast 0.5ms response.

Key Features

Ultra-slim 3.5mm thick housing
Through-beam sensing method
Narrow red LED beam for small object detection (min. dia. 1.0 mm)
PNP open-collector transistor output (Max 50 mA)
IP67 protection rating against dust and water
High-speed response time: 0.5 ms or less
Light-ON operation
Orange LED operation indicator and Green LED stability indicator
Incorporated short-circuit protection
Wide ambient temperature range: -25 to +55 °C
Supply voltage: 12 to 24 V DC
RoHS compliant

Technical Specification Matrix

Parameter	Value
Sensing Method	Through-Beam
Sensing Range	150 mm
Min. Sensing Object	dia. 1.0 mm opaque object
Supply Voltage	12 to 24 V DC ±10% (Ripple P-P 10% or less)
Current Consumption	Emitter: 10 mA or less, Receiver: 10 mA or less
Output Type	PNP Open-Collector Transistor
Max. Source Current	50 mA
Response Time	0.5 ms or less
Protection Rating	IP67 (IEC)
Operating Temperature	-25 to +55 °C
Storage Temperature	-30 to +70 °C
Ambient Humidity	35 to 85 % RH (Storage: 35 to 85 % RH)
Emitting Element	Red LED (Peak emission wavelength: 680 nm)
Cable Length	2 m
Enclosure Material	Polyarylate
Lens Material	Polyarylate
Short-circuit Protection	Incorporated
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	1.45 x 0.35 x 1

Industrial Applications

1. High-precision Small Part Detection in Automated Assembly

The EX-11SEA-PN's narrow beam and ability to detect objects as small as 1.0 mm, combined with its 0.5 ms response time, make it ideal for verifying the presence or absence of tiny components on fast-moving conveyor belts or robotic pick-and-place systems in electronics manufacturing. Its ultra-slim profile (3.5mm thickness) allows for integration into highly constrained spaces.

Problem Solved

Ensuring quality control and throughput by reliably detecting miniature components in high-speed assembly lines where space is limited.

Small object detectionHigh-speed responseMiniature sensorAutomated assemblyQuality control

2. Positioning and Indexing in Compact Machinery

With a 150 mm sensing range and miniature dimensions (14.5 x 3.5 x 10mm), this sensor can precisely detect the position of tooling, jigs, or small workpieces within tight mechanical assemblies, such as those found in specialized packaging machines or material handling equipment. The IP67 rating ensures reliable operation in environments with dust or water spray.

Problem Solved

Accurate and repeatable positioning of small parts or machine elements in compact and potentially harsh industrial machinery, preventing misalignment and machine damage.

Precision positioningCompact machineryIP67 environmental protectionMaterial handlingRobotics

3. Edge Detection for Thin Materials

The narrow beam and high sensitivity allow for accurate edge detection of thin films, paper, or textiles in winding, unwinding, or slitting processes. The through-beam method ensures reliable detection even with transparent or semi-transparent materials, which diffuse reflective sensors might struggle with. The 12-24V DC supply voltage is standard for industrial control systems.

Problem Solved

Maintaining consistent web tension and cutting accuracy by precisely identifying the edges of various thin materials, including those that are difficult for other sensor types to detect.

Edge detectionThin materialsWeb guidingThrough-beam sensingFilm processing