Industry-Verified Manufacturing Data (2026)

Photodetector

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Photodetector used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Photodetector is characterized by the integration of Photosensitive Element and Electrodes. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (Silicon, Germanium, InGaAs) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A device that converts light signals into electrical signals for detection and measurement.

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Product Specifications

Technical details and manufacturing context for Photodetector

Definition
A photodetector is an electronic component within a sensor module that detects light or other electromagnetic radiation and converts it into an electrical signal. It serves as the primary sensing element in optical sensor systems, enabling the measurement of light intensity, detection of presence/absence, and various optical measurements.
Working Principle
Photodetectors operate based on the photoelectric effect, where incident photons strike a photosensitive material (typically semiconductor-based), generating electron-hole pairs that create a measurable electrical current or voltage proportional to the light intensity.
Common Materials
Semiconductor (Silicon, Germanium, InGaAs)
Technical Parameters
  • Spectral response range - the wavelengths of light the detector can effectively respond to (nm) Standard Spec
Components / BOM
  • Photosensitive Element
    Converts photons to electrical charge carriers through the photoelectric effect
    Material: Semiconductor material (e.g., Silicon, Germanium)
  • Electrodes
    Collect and conduct the generated electrical current to external circuitry
    Material: Metal (typically Aluminum or Gold)
  • Packaging/Window
    Protects the sensitive element while allowing light transmission in the desired spectral range
    Material: Glass or optical-grade plastic
Engineering Reasoning
400-1100 nm wavelength, 1 nW-10 mW optical power, -40°C to 85°C ambient temperature
Saturation at 15 mW optical power causing thermal damage, dark current exceeding 100 nA at 25°C, quantum efficiency dropping below 10% at 300 nm wavelength
Design Rationale: Avalanche breakdown at reverse bias > 200 V in APDs, photodiode junction heating beyond 150°C causing permanent lattice damage, surface recombination velocity exceeding 10^4 cm/s at silicon-silicon dioxide interface
Risk Mitigation (FMEA)
Trigger Electrostatic discharge exceeding 500 V during handling
Mode: Gate oxide breakdown in phototransistor, creating permanent short circuit
Strategy: Shunt diode protection with 5.6 V Zener rating, antistatic packaging with surface resistivity < 10^11 Ω/sq
Trigger Continuous optical overload at 20 mW for 100 ms duration
Mode: Thermal runaway in PIN photodiode, increasing dark current by 3 orders of magnitude
Strategy: Integrating optical limiter with 10 mW threshold, copper heat sink with 2.5 K/W thermal resistance

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Photodetector.

silicon photodetector for optical manufacturing InGaAs photodetector high sensitivity semiconductor light detection device photodetector electrodes and packaging industrial photodetector measurement applications

Applied To / Applications

This component is essential for the following industrial systems and equipment:

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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar
temperature: -40°C to +85°C
response time: 1 ns to 100 ms
wavelength range: 190 nm to 1100 nm
Media Compatibility
✓ Optical fibers ✓ Clear liquids ✓ Gaseous environments
Unsuitable: High-particulate slurry environments
Sizing Data Required
  • Wavelength of light source
  • Required response time
  • Signal-to-noise ratio requirement

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Photodiode degradation
Cause: Excessive exposure to high-intensity light or radiation beyond rated specifications, leading to permanent damage to the semiconductor material and reduced sensitivity.
Optical window contamination
Cause: Accumulation of dust, oil, or particulates on the optical surface, obstructing light transmission and causing signal attenuation or false readings.
Maintenance Indicators
  • Drift or instability in output signal under constant light conditions, indicating potential internal component failure or contamination.
  • Visible discoloration, clouding, or physical damage to the optical window or housing, suggesting environmental exposure issues.
Engineering Tips
  • Implement optical window inspection and cleaning protocols using approved, lint-free materials and solvents to prevent scratching and maintain light transmission efficiency.
  • Ensure proper alignment and secure mounting to minimize vibration-induced misalignment, and use protective housings or filters to shield from excessive light intensity and harsh environmental conditions.

Compliance & Manufacturing Standards

Reference Standards
ISO 9022-3:2015 (Environmental test methods for optical components) ANSI/IES LM-79-19 (Electrical and photometric measurements of solid-state lighting products) DIN 58141-6:2016-12 (Fiber optic components - Part 6: Photodetectors)
Manufacturing Precision
  • Spectral response range: +/- 5 nm
  • Dark current: +/- 10% of specified value
Quality Inspection
  • Quantum efficiency measurement test
  • Response time and bandwidth verification test

Factories Producing Photodetector

Verified manufacturers with capability to produce this product in China

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✓ 93% Supplier Capability Match Found

T Technical Director from Germany Jan 02, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Brazil Dec 30, 2025
★★★★☆
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Photodetector meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Canada Dec 27, 2025
★★★★★
"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Photodetector arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Photodetector from Mexico (1h ago).

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Frequently Asked Questions

What are the key materials used in photodetectors for industrial applications?

Industrial photodetectors primarily use semiconductor materials like Silicon, Germanium, and InGaAs (Indium Gallium Arsenide), chosen for their specific wavelength sensitivity and efficiency in converting light to electrical signals.

How does a photodetector function in computer and optical product manufacturing?

In manufacturing, photodetectors detect and measure light signals, enabling quality control, automation, and precise sensing in processes such as optical alignment, laser measurement, and electronic component testing.

What components are essential in a photodetector's bill of materials (BOM)?

The essential BOM components include a photosensitive element (semiconductor material), electrodes for electrical connection, and packaging/window to protect the element while allowing light transmission.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

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