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Photocell mini photo-resistor

Photocell mini photo-resistor - This type of Photocell Mini photo-resistor is made of environment-friendly materials(no Cadmium and Lead) compared with the traditional CDS photo-resistor.

It changes resistance depending on the amount of light it is exposed to. These little sensors can be used in light-interacting projects.


  • Head Diameter:                  5mm(0.2")
  • Voltage:                                  5V  
  • Power Consumption:           70mW 
  • Operating Temperature:      -25~+85°C
  • Storage Temperature:        -40~+100°C
  • Soldering Temperature:      260(<3s)°C

Frequently Asked Questions About Photocell Mini Photo-Resistor

Q1: What is a photocell mini photo-resistor?

A light-dependent resistor (LDR), sometimes called a photoresistor or a photocell small photo-resistor, is an electrical component whose resistance varies according on the quantity of light striking its surface. It is a kind of sensor that notices changes in light intensity and reacts to them.

Q2: How does a photocell mini photo-resistor work?

A semiconductor substance that displays a fluctuation in resistance when exposed to light makes up a photocell tiny photo-resistor. When light strikes the photoresistor's surface, photons in the semiconductor activate electrons, changing the semiconductor's conductivity. This alteration results in a proportional alteration in resistance, which may be measured and applied in a variety of ways.

Q3: What are the common applications of photocell mini photo-resistors?

  1. Numerous applications call for the usage of photocell tiny photo-resistors, including:Light sensing: By detecting the amount of ambient light, they may change the brightness of screens or backlighting as necessary.
  2. Streetlights and outdoor lighting: Depending on the amount of daylight, photoresistors are frequently employed to turn streetlights on and off or vary their brightness.
  3. Security systems: By sensing changes in light patterns, they may be employed in burglar alarms or motion detectors to identify the presence of an intruder.
  4. Photoresistors can be used in cameras to adjust the exposure settings based on the amount of light present.
  5. Electricity-saving gadgets: When there is enough natural light, they may be utilised to turn off lights or other gadgets, conserving electricity.

Q4: What is the resistance range of photocell mini photo-resistors?

The unique model and manufacturing requirements can affect the resistance range of photocell tiny photo-resistors. The resistance may often be found in the few hundred to several megaohmrange.

Q5: Can photocell mini photo-resistors be used with digital circuits?

It is possible to utilise photocell tiny photo-resistors with digital circuits. The analogue resistance readings may need to be converted into digital signals that may be handled by microcontrollers or other digital devices using extra components like operational amplifiers or comparators.

Q6: Are photocell mini photo-resistors sensitive to all types of light?
Most sensitive to visible light, particularly in the range of wavelengths that people can sense, are photocell tiny photo-resistors. They may, however, also react to other wavelengths of the electromagnetic spectrum, such as infrared and ultraviolet light, to some extent.

Photocell mini photo-resistor

Photocell mini photo-resistor

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Regular price ₱ 49.00
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