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Metal Casing Good Reliablity Phototransistor D57 Series for Light Control Lamp
Metal Casing Good Reliablity Phototransistor D57 Series for Light Control Lamp

Metal Casing Good Reliablity Phototransistor D57 Series for Light Control Lamp

Overview

Light dependent resistor is made of semiconductor material. Also name LDR, photoconductor. The electric conductivity changs by the illuminance. The illuminance is more stronger, the value of the resistance will be more weaker. With this chareter, we can produce different size to satified different requirement. We have 5MM and 12MM series.


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FAQ
  • Is Wave Soldering Recommended?

    Wave soldering is likely to cause degradation of product performance. Wave soldering is not recommended. Generally we recommend to solder by hand.


  • Can PIR Sensor Detect Animals?

    PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.

  • Do PIR Sensors Work Through Glass?

    No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.


  • What Is The Package?

    1. PIR sensor: Graphic Carton-> Carton

    2. LDR: plastic bag -> Graphic Carton -> Carton

    3. Fresnel Lens: plastic bag -> Carton


  • What are the Factors that Affect the Performance of the Product?

    1. When there is dirt on the window, it will affect the detection performance.

     

    2. When the ambient temperature and the human body temperature are close, the detection and sensitivity are significantly reduced, sometimes causing short-term failure. The recommended minimum temperature difference between the ambient temperature and the human body temperature needs to reach at least 4 ° C.

     

    3. When designing the circuit, pay attention to anti-interference measures to prevent false alarms caused by radio frequency interference.