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Senba Sensing Technology Co., Ltd.
Photoresistor φ4 series for Photoelectric Control
Photoresistor φ4 series for Photoelectric Control

Photoresistor φ4 series for Photoelectric Control

Overview

Senba Sensing Technology Co.,Ltd., was founded in 2005, which is focus on the photoelectric components, such as light dependent sensor. Photosensitive resistance is the resistance of a semiconductor material, the conductivity change with light intensity varies.The use of this feature will work made of different shapes and light-receiving area of the photosensitive resistance.


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Feature

  • Small volume

  • Fast response

  • Good spectrum characteristic


Standard Type and Specifications

Specification

Type

Maximum

Voltage

Maximum

power

Spectrum

peak value

Light

resistance

(10Lux)

(KΩ)

Dark

resistance

(MΩ)

Response time

(ms)

Increase

Decrease

Φ4

series

GL4516

150

50

540

5- 10

0.6

30

30

GL4526

150

50

540

10- 20

1

30

30

GL4537-1

150

50

540

20- 30

2

30

30

GL4537-2

150

50

540

30- 50

3

30

30

GL4548-1

150

50

540

50- 100

5

30

30

Applications

  • Camera shutter control

  • LDRs can be used to control the shutter speed on a camera. The LDR would be used to measure the light intensity which then adjusts the camera shutter speed to the appropriate level.


FAQ

1. What is the size for LDR?

φ3 series, φ4 series, φ5 series, φ7 series, φ10 series, φ12 series, φ20 series.

2. What is your production capitable?

5 million Pieces per Month


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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.