Senba Sensing Technology Co., Ltd.
High Quality LDR Electric Circuit φ12 for Street Lamps from Senba Manufacturer
High Quality LDR Electric Circuit φ12 for Street Lamps from Senba Manufacturer

High Quality LDR Electric Circuit φ12 for Street Lamps from Senba Manufacturer

Overview

A photoresistor is made of a high resistance semiconductor. In the dark, a photoresistor can have a resistance as high as several megohms (MΩ), while in the light, a photoresistor can have a resistance as low as a few hundred ohms. If incident light on a photoresistor exceeds a certain frequency, photons absorbed by the semiconductor give bound electrons enough energy to jump into the conduction band.


Feature

Photoresistors can be placed in streetlights to control when the light is on. Ambient light falling on the photoresistor causes the streetlight to turn off. Thus energy is saved by ensuring the light is only on during hours of darkness.


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

φ12

series

GL12516

250

200

560

5- 10

1

30

30

GL12528

250

200

560

10- 20

2

30

30

GL12537-1

250

200

560

20- 30

3

30

30

GL21537-2

250

200

560

30- 50

5

30

30

GL12539

250

200

560

50- 100

8

30

30


Applications

They are also used in some dynamic compressors together with a small incandescent or neon lamp, or light-emitting diode to control gain reduction. A common usage of this application can be found in many guitar amplifiers that incorporate an onboard tremolo effect, as the oscillating light patterns control the level of signal running through the amp circuit.


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

3. Packaging information.

100pcs per small package,1000pcs per big package

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FAQ