Sensors for Industrial Applications: Light Sensor NaPiCa

Light Sensor NaPiCa design engineers Panasonic
Light Sensor NaPiCa NaPiCa_AMS

Visible light sensor (Silicon Photo IC) that detects light and converts into electrical current.
Consists of a photodiode and built-in amplifier.
Optical filter provides spectral response similar to human eye sensitivity.
Environmentally friendly (cadmium free) and contributes to device energy savings and comfort.


1. Built-in optical filter for spectral response similar to that of the human eye.
Relative sensitivity vs. wavelength characteristics
Reverse voltage: 5V
Ambient temperature: 25°C (77°F)

2. Photocurrent is proportional to illumination (linear output)
Photocurrent vs. brightness characteristics
Light source: Fluorescent lamp
Reverse voltage: 5V
Ambient temperature: 25°C (77°F)


Through-hole Type

  • Brightness detection for LCD backlight control for LCD devices (LCD TVs, car navigation systems, and mobile PCs).
  • Brightness detection for circuits in residential lighting, lighting for security, and automatic lighting for bicycle.
  • Household applicances (day/night energy savings for air conditioners and electric hot water pots, etc.)
  • Brightness detection for wall clocks (radio clocks).

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