Panel Indicators, Pilot Lights

Part Number	Description / PDF	Quantity
SSI-LXH600HGW-150 Lumex, Inc.	LED 5MM RED/GRN DIFF 6"LDS PNLMT	1404
SSI-LXH55GD Lumex, Inc.	LED 5X5MM SQR GREEN DIFF PANELMT	570
SSI-LXH600SID-150 Lumex, Inc.	LED T-5 1/4"12V 636NM RED 6" LD	0
SSI-LXH600USBD-150 Lumex, Inc.	LED PANEL INDICATOR BLUE 3.5V	978
SSI-LXW06DNS-I Lumex, Inc.	LED IND M6 PNL MT RED 2V IP67	27
SSI-LXH1090SRD Lumex, Inc.	LED 10MM SUPER RED PANEL MOUNT	4873
SSI-LXR9126SGD110V Lumex, Inc.	LED GRN PNL MNT 6"LDS W/CONN	0
SSI-RM3091SID-150 Lumex, Inc.	LED 3MM ALINGAP RED 6"LD REAR MT	0
SSI-LXMP059ID Lumex, Inc.	LED 2X5MM RED PANEL MOUNT	19392
SSI-LXR3612GD Lumex, Inc.	LED 3MM GREEN DIFF PANEL MOUNT	906
SSI-LXR4815SRD Lumex, Inc.	LED 5MM SUP RED DIFF REFL PNL MT	3121
SSI-LXR4815GD-150 Lumex, Inc.	T-5MM METAL REF IND GREEN W/6" W	2650
SSI-LXR1612GD Lumex, Inc.	LED 3MM FLUSH GREEN DIFF PANELMT	1621
SSI-LXR3816USBD150 Lumex, Inc.	LED PANEL INDICATOR BLUE 3.5V	4225
SSI-LXH9SRD-610 Lumex, Inc.	LED PANEL INDICATOR RED 1.7V	0
SSI-LXH072YD Lumex, Inc.	LED 2.3X7MM YEL PANEL MOUNT	0
SSI-LXW08DNS-I Lumex, Inc.	LED IND M8 PNL MT RED 2V IP67	10
SSI-LXH387ID Lumex, Inc.	LED 4.9MM FLAT TOP RED PANEL MNT	2001
SSI-LXH387YD Lumex, Inc.	LED 4.9MM FLAT TOP YEL PANEL MNT	6659
SSI-LXR1612ID Lumex, Inc.	LED 3MM FLUSH RED DIFF PANEL MT	1549

Panel Indicators, Pilot Lights

1. Overview

Panel indicators and pilot lights are optoelectronic devices that provide visual status feedback in electrical and electronic systems. These components convert electrical signals into light outputs, enabling operators to monitor equipment conditions at a glance. Their importance spans across industrial automation, consumer electronics, transportation, and medical devices, where reliable visual indication ensures operational safety, efficiency, and user interaction.

2. Major Types and Functional Classification

Type	Functional Features	Application Examples
LED Panel Indicators	Low power consumption, long lifespan, instant response	Industrial control panels, HVAC systems
Lamp-based Pilot Lights	High brightness, compatibility with AC/DC circuits	Machinery status indication, heavy-duty equipment
Combined Indicator/Switch	Integrated illumination with manual control	Emergency stop circuits, control desks
Multi-color Indicators	Programmable color outputs for status differentiation	Network routers, medical diagnostic equipment
Remote Indicators	Separate light source and panel module	Automotive dashboards, aerospace control systems

3. Structure and Components

Typical construction includes:

Light Source: LED chips or filament bulbs with specific color/wavelength
Housing: Thermoplastic or metal body with mounting threads (e.g., M20, NPT)
Optical System: Diffused or focused lens for uniform light distribution
Electrical Interface: Screw terminals, PCB pins, or quick-connect terminals
Sealing Elements: Rubber gaskets for IP65+ protection ratings

4. Key Technical Specifications

Parameter	Significance
Operating Voltage Range	Determines compatibility with control circuits (3-480V AC/DC)
Luminous Intensity (cd)	Affects visibility in different lighting conditions
Color Wavelength (nm)	Standardizes visual coding (e.g., 630nm red for warnings)
MTBF (Hours)	Indicates reliability (LED: 50,000-100,000 hours)
IP Rating	Defines environmental protection level
Response Time (ms)	Critical for real-time status monitoring

5. Application Areas

Industrial: CNC machines, PLC control cabinets, factory automation
Transportation: Locomotive control panels, aircraft avionics
Medical: Patient monitors, imaging equipment status indicators
Consumer: Home appliance power indicators, audio equipment
Energy: Solar inverters, smart grid monitoring systems

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Phoenix Contact	ILLINOX series	Modular design, IP69K rating
Omron	XLDC12E-4AH	Ultra-compact LED indicator with 100,000-hour lifespan
Siemens	8WA1000 series	Multi-voltage capability (24-415V AC/DC)
Eaton	Pilot Lights H45K	Shock-resistant filament lamps for heavy-duty use
TE Connectivity	CapLED	Capacitive touch-enabled indicator

7. Selection Recommendations

Key considerations:

Environmental factors: Temperature range (-40 C to +85 C), vibration levels
Electrical compatibility: Voltage matching and circuit type (AC/DC)
Visibility requirements: Ambient light conditions and viewing distance
Certification needs: UL, CE, RoHS compliance for regulatory environments
Mechanical specifications: Panel cutout size (commonly 16/22/30mm)

Example: Selecting an IP67-rated LED indicator with 24V DC operation for a food processing plant's washdown area.

Industry Trends

Emerging developments include:

Integration with IoT systems for smart status monitoring
Miniaturization for high-density panel designs
RGB-LED technology for dynamic color coding
Energy harvesting indicators for self-powered operation
Enhanced durability coatings for extreme environments