INDUSTRY COMPONENT

Infrared Detector Element

Infrared detector element converts infrared radiation into electrical signals for temperature measurement and motion detection.

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Component Specifications

Definition
An infrared detector element is a semiconductor-based electronic component that detects infrared radiation within specific wavelength ranges (typically 0.7-14 μm). It operates by converting incident infrared photons into measurable electrical signals through photoelectric or thermal effects, enabling non-contact temperature measurement, motion sensing, and thermal imaging applications in industrial automation.
Working Principle
The element functions through either photonic detection (using materials like InGaAs, HgCdTe, or pyroelectric crystals that generate electrical charge when exposed to IR radiation) or thermal detection (using thermopiles or microbolometers that change resistance with temperature). Incident IR radiation causes electron excitation in semiconductor materials, producing voltage or current proportional to radiation intensity, which is then amplified and processed by associated circuitry.
Materials
Semiconductor materials: InGaAs (0.7-2.6 μm), HgCdTe/MCT (3-5 μm, 8-14 μm), InSb (3-5 μm), pyroelectric materials (LiTaO₃, PZT), silicon microbolometers; Packaging: TO-5, TO-8, or ceramic packages with germanium/silicon windows; Electrodes: Gold bonding wires.
Technical Parameters
  • Responsivity 1-10 V/W
  • Field of View 20°-120°
  • Response Time 1 ns-1 ms
  • Spectral Range 0.7-14 μm
  • Detectivity (D*) 10^8-10^11 cm·Hz¹/²/W
  • Operating Temperature -40°C to +85°C
  • Noise Equivalent Power 10^-9-10^-12 W/Hz¹/²
Standards
ISO 18434-1, IEC 62471, ASTM E1256

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Infrared Detector Element.

infrared detector IR sensor component thermal detector pyroelectric sensor InGaAs detector HgCdTe industrial temperature sensor motion detection element Infrared Detector Element Infrared Detector Element in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Infrared Sensor

An electronic device that detects infrared radiation emitted by objects and converts it into an electrical signal for measurement or detection purposes.

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Engineering Analysis

Risks & Mitigation
  • Thermal drift affecting accuracy
  • Window contamination reducing sensitivity
  • Electrostatic discharge damage
  • Moisture ingress causing failure
FMEA Triads
Trigger: Thermal stress from rapid temperature changes
Failure: Cracking of semiconductor material or packaging
Mitigation: Implement gradual temperature cycling in operation, use thermal interface materials, and design with expansion-matched materials
Trigger: Electrostatic discharge during handling
Failure: Permanent damage to sensitive semiconductor junctions
Mitigation: Use ESD-protected workstations, proper grounding, and antistatic packaging during manufacturing and installation

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% of reading or ±2°C for temperature measurement applications
Test Method
Calibration against blackbody radiation sources per ASTM E1256, spectral response testing using monochromators, and environmental testing per IEC 60068-2 standards

Buyer Feedback

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Frequently Asked Questions

What is the difference between photonic and thermal infrared detectors?

Photonic detectors (like InGaAs or HgCdTe) directly convert photons to electrons, offering faster response and higher sensitivity but require cooling. Thermal detectors (like pyroelectric or microbolometer) measure temperature changes, operating at room temperature with slower response but broader spectral range.

How do I select the right infrared detector element for my application?

Consider spectral range (match target emission wavelength), response time (faster for motion detection), sensitivity (D* value), operating temperature, and environmental conditions. For high-speed applications, choose photonic detectors; for cost-effective thermal imaging, select microbolometers.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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