INDUSTRY COMPONENT

Indicator LED

Indicator LED for surge protection module status monitoring

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Component Specifications

Definition
A light-emitting diode component integrated into surge protection modules to provide visual status indication of protection circuit functionality, fault conditions, and operational readiness through specific color coding and illumination patterns.
Working Principle
Operates by converting electrical current into visible light through electroluminescence in a semiconductor material, with specific voltage thresholds and current limiting resistors to ensure proper illumination while indicating module status (green=operational, red=fault, amber=warning).
Materials
Semiconductor: Gallium Arsenide Phosphide (GaAsP) or Gallium Phosphide (GaP) for specific wavelengths; Encapsulation: Epoxy resin with diffuser; Leads: Copper alloy with tin plating; Housing: Polycarbonate or ABS plastic with UL94 V-0 rating.
Technical Parameters
  • Wavelength 525nm (green), 630nm (red), 590nm (amber)
  • Viewing Angle 30-60 degrees
  • Forward Current 10-20mA
  • Forward Voltage 1.8-3.2V
  • Life Expectancy 50,000-100,000 hours
  • Luminous Intensity 5-20 mcd
  • Operating Temperature -40°C to +85°C
Standards
IEC 61000-4-5, UL 1449, IEC 62368-1, RoHS

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Indicator LED.

surge protection LED indicator status indicator light protection module LED fault indication LED electrical protection monitoring industrial LED component Indicator LED Indicator LED in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Surge Protection Module

A protective electronic component designed to limit transient voltage spikes in electrical circuits.

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Sensing Unit

A detection component within a fastener feeder system that monitors fastener presence, position, and feeding status.

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Engineering Analysis

Risks & Mitigation
  • Incorrect status indication due to LED failure
  • False positive/negative fault indications
  • Environmental degradation of LED clarity
  • Electrical interference with sensitive circuits
  • Incompatible voltage/current requirements
FMEA Triads
Trigger: LED semiconductor degradation
Failure: Diminished or no light output
Mitigation: Use high-reliability LEDs with 50,000+ hour ratings; implement current limiting with 20% margin; provide protective circuitry against voltage spikes
Trigger: Current limiting resistor failure
Failure: LED burnout or insufficient illumination
Mitigation: Use metal film resistors with 1% tolerance; implement redundant resistor paths; provide thermal protection
Trigger: Environmental contamination
Failure: Reduced visibility through lens
Mitigation: Use sealed LED assemblies; implement protective coatings; specify IP65 or higher rating for harsh environments

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% for current limiting resistors, ±10nm for wavelength specification, ±20% for luminous intensity
Test Method
Visual inspection under specified lighting conditions; electrical testing with calibrated current source; environmental testing per IEC 60068-2 standards; surge immunity testing per IEC 61000-4-5

Buyer Feedback

★★★★☆ 4.6 / 5.0 (35 reviews)

"Reliable performance in harsh Electrical Equipment Manufacturing environments. No issues with the Indicator LED so far."

"Testing the Indicator LED now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What do different LED colors indicate on surge protection modules?

Green indicates normal operation and protection active; Red indicates fault or protection failure requiring replacement; Amber/yellow indicates warning or degraded protection; Flashing patterns may indicate specific fault conditions.

How are indicator LEDs integrated into surge protection circuits?

LEDs are connected in parallel with MOVs or gas discharge tubes through current-limiting resistors, with separate circuits for status monitoring that detect voltage presence, thermal protection status, and MOV degradation.

What maintenance is required for indicator LEDs?

No routine maintenance required; LEDs should be visually inspected during regular equipment checks for proper illumination; replacement is only needed if LED fails to illuminate when module is powered and functional.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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