Panasonic CX-461A Limited Reflective Photoelectric Sensor

Technical Overview

5x30mm linear light spot sensor for stable detection of intricate surfaces and cutouts. Features IP67 protection, 1ms response, and interference prevention.

Key Features

Stable detection of objects with cutouts or uneven surfaces due to linear light spot design.
Easy installation without the need for sensitivity adjustment.
Special optical lens design ensures stable detection regardless of workpiece color variations.
Automatic interference prevention function allows side-by-side mounting of up to two sensors.
IP67 protection structure for reliable operation in environments with water and dust.
Fast 1ms response time for high-speed applications.
Equipped with short-circuit protection (automatic recovery) and reverse polarity protection.
Red LED light source with 630nm peak wavelength for clear visibility.

Technical Specification Matrix

Parameter	Value
Detection Distance	10-40mm (center 23mm)
Detection Spot Size	5mm x 30mm (at 30mm detection distance)
Hysteresis	8% or less
Repeatability (perpendicular to detection axis)	1mm or less
Power Supply Voltage	12-24V DC ± 10% (P-P ripple 10% or less)
Current Consumption	15 mA or less
Output Type	NPN Open Collector Transistor
Max. Sink Current	100mA
Applied Voltage	30V DC or less (between output and 0V)
Residual Voltage	2V or less (at 100mA sink current), 1V or less (at 16mA sink current)
Output Operation	Light ON / Dark ON (selectable)
Short-circuit Protection	Equipped (automatic recovery)
Reverse Polarity Protection	Equipped
Response Time	1ms or less
Operation Indicator	Orange LED (output ON)
Stability Indicator	Green LED (stable light reception/non-reception)
Sensitivity Adjuster	None
Interference Prevention	Equipped (up to 2 sensors can be mounted closely)
Protection Structure	IP67 (IEC)
Operating Ambient Temperature	-25 to +55℃ (no condensation/icing)
Storage Ambient Temperature	-30 to +70℃
Operating Ambient Humidity	35 to 85% RH
Operating Ambient Illuminance	Incandescent light: 5,000lx or less on receiving surface
Withstand Voltage	AC1,000V for 1 minute (between all power connection terminals and case)
Vibration Resistance	10-500Hz, 1.5mm double amplitude (MAX.10G), X, Y, Z directions, 2 hours each (non-energized)
Light Emitting Element	Red LED (modulated), Peak Wavelength: 630nm
Case Material	PBT (Polybutylene Terephthalate)
Lens Material	Acrylic
Indicator Cover Material	Acrylic
Cable	0.2mm² 3-core rubber cable, 0.5m length
Cable Extension	0.3mm² or larger cable, up to 100m total length
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	3.5 x 1.12 x 2

Industrial Applications

1. SMT PCB Presence & Position Verification

The Panasonic CX-461A sensor accurately detects the presence and precise position of Printed Circuit Boards (PCBs) on SMT (Surface Mount Technology) assembly lines. Its 5mm x 30mm linear light spot effectively covers board sections, and its ability to ignore small cutouts or depressed surfaces ensures consistent detection without false triggers.

Problem Solved

Ensures accurate feeding and alignment of PCBs, preventing misfeeds or damage in high-speed SMT assembly processes, even with boards featuring complex layouts or varying surface characteristics.

SMTPCB detectionlinear light spotposition verificationcutout immunity

2. Manual Component Insertion Verification on Substrates

Utilized in manual component insertion stations for PCBs, this sensor verifies the correct insertion of components or confirms the presence of the bare substrate before the next assembly step. Its stable detection across various colors and robust IP67 rating support reliable operation in diverse workshop environments.

Problem Solved

Reduces errors in manual assembly by ensuring components are correctly placed or verifying substrate presence, improving quality control and minimizing rework in labor-intensive processes.

Manual assemblycomponent verificationsubstrate presenceIP67stable detection

3. Multi-Pocket Tray or Wafer Tray Object Detection

The 5mm x 30mm linear light spot makes this sensor ideal for detecting objects within multi-pocket trays or wafer carriers, particularly those with complex geometries or depressions. The sensor's immunity to background effects and stable performance on varied materials ensures reliable count and presence checks.

Problem Solved

Accurately identifies the presence or absence of small, delicate components in intricate trays, avoiding missed parts or incorrect counts in semiconductor or small parts handling processes.

Wafer handlingmulti-pocket trayobject presencecomplex geometry detectionreliable counting