LDR Series, Photo Detectors - CdS Cells

Results:
11
Manufacturer
Series
Cell Resistance (Min) @ Dark
Cell Resistance @ Illuminance
Voltage - Max
Rise Time (Typ)
Wavelength
Operating Temperature
Package / Case
Fall Time (Typ)
Mounting Type
Supplier Device Package
Results remaining11
Applied Filters:
LDR
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ImageProduct DetailPriceAvailabilityECAD ModelMounting TypePackage / CaseWavelengthOperating TemperatureSupplier Device PackageSeriesFall Time (Typ)Voltage - MaxCell Resistance @ IlluminanceRise Time (Typ)Cell Resistance (Min) @ Dark
02-LDR15
12MM LDR 50K-100K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
250VDC
50 ~ 100kOhm @ 10 lux
30 ms
8 MOhms @ 10 s
02-LDR2
PHOTOCELL 5-10K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
540nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
100VDC
5 ~ 10kOhms @ 10 lux
30 ms
500 Ohms @ 10 s
02-LDR4
5MM LDR 30K-50K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
540nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
150VDC
30 ~ 50kOhm @ 10 lux
20 ms
3 MOhms @ 10 s
02-LDR3
PHOTOCELL 100-200K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
540nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
100VDC
100 ~ 200kOhms @ 10 lux
20 ms
10 kOhms @ 10 s
02-LDR14
10MM LDR 30K-50K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
250VDC
30 ~ 50kOhm @ 10 lux
30 ms
5 MOhms @ 10 s
02-LDR13
12MM LDR 10K-20K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
250VDC
10 ~ 20kOhm @ 10 lux
30 ms
2 MOhms @ 10 s
02-LDR20
20MM LDR 5K-10K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
500VDC
5 ~ 10kOhm @ 10 lux
30 ms
1 MOhms @ 10 s
02-LDR22
20MM LDR 30K-50K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
500VDC
30 ~ 50kOhm @ 10 lux
30 ms
5 MOhms @ 10 s
02-LDR23
20MM LDR 50K-100K OHM
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Quantity
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PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
500VDC
50 ~ 100kOhm @ 10 lux
30 ms
8 MOhms @ 10 s
02-LDR21
20MM LDR 10K-20K OHM
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Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
500VDC
10 ~ 20kOhm @ 10 lux
30 ms
2 MOhms @ 10 s
02-LDR12
12MM LDR 5K-10K OHM
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Through Hole
Radial
560nm
-30°C ~ 70°C (TA)
Radial
LDR
30 ms
250VDC
5 ~ 10kOhm @ 10 lux
30 ms
1 MOhms @ 10 s

About  Photo Detectors - CdS Cells

Cadmium sulfide (CdS) photodetectors, commonly referred to as photoresistors, light-dependent resistors (LDRs), or photo-conductive cells, are semiconductor devices with high resistance that exhibit variable resistance based on incident light intensity. These devices are widely used in applications where light detection and control are required. The fundamental operation of a CdS photodetector is based on the principle of photoconductivity. When no light is present, the CdS material has a high resistance, limiting the flow of electric current. However, when exposed to light, the photons excite electrons in the CdS, causing them to migrate and reducing the resistance of the material. As a result, the device acts as a light-controlled variable resistor. Photoresistors are selected based on various characteristics, including cell resistance, maximum voltage, and rise and fall times. The cell resistance determines the initial resistance of the device in darkness, while the maximum voltage specifies the highest voltage that can be applied across the photoresistor without damaging it. Rise and fall times refer to the speed at which the resistance changes when the light intensity increases or decreases. These photodetectors find applications in diverse fields, including light sensing, automatic lighting control, burglar alarms, camera exposure control, and robotics. Their ability to detect and respond to changes in light intensity makes them useful in situations where automatic adjustments or triggering based on ambient light conditions are required. In summary, CdS photodetectors, also called photoresistors or LDRs, are semiconductor devices with high resistance that vary their resistance based on incident light intensity. They operate on the principle of photoconductivity, with the resistance decreasing as the light intensity increases. Photoresistors are chosen based on characteristics such as cell resistance, maximum voltage, and rise and fall times. These devices have numerous applications in light sensing, automatic control systems, burglar alarms, and more, where their light-dependent resistance enables responsive adjustments to ambient light conditions.