LIGHT DEPENDENT RESISTORS, PHOTORESISTOR

Light Dependent Resistors (LDR), Photoresistor (CDS)

PGM

A photoresistor, light dependent resistor (LDR), cadmium sulfide (CdS) cell, photoconductor, or photocell is a variable resistor whose resistance depends on the amount of light incident upon it. In other words, its resistance will be high in the dark and low in the light.


Tokenchina's PGM series are specified for light-sensitive switching devices, security alarms, street lamps, and clock radios. Application of CdS photoresistor specific designs also available including different photo resistance and response time specifications adjusted to resistance requirements.


Detailed specifications, both mechanical and electrical, please contact our sales representative for more information.


Features cds Light Dependent Resistors, Photoresistor

  • Good Characteristic of Spectrum
  • Epoxy or hermetical package
  • Reliable Performance
  • Quick Response

Applications

  • Photoelectric, Automatic Lighting Control, Batch Counting
  • Photoswitch, Electronic Toys, Smoke Detection
  • Industrial Control, Burglar Alarm System
  • Auto Flash for Camera

Epoxy Resin Package Characteristics & Dimensions (mm) - PGM5

cds,photo,photoresistor,5mm cds,photo,photoresistor,dimensions

5mm PGM5*** Series - CDS Photoresistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM5506 100 90 -30 ~ +70 540 2 ~ 6 0.15 0.6 30 40
PGM5516 100 90 -30 ~ +70 540 5 ~ 10 0.2 0.6 30 40
PGM5526 150 100 -30 ~ +70 540 8 ~ 20 1.0 0.6 20 30
PGM5537 150 100 -30 ~ +70 540 16 ~ 50 2.0 0.7 20 30
PGM5539 150 100 -30 ~ +70 540 30 ~ 90 5.0 0.8 20 30
PGM5549 150 100 -30 ~ +70 540 45 ~ 140 10.0 0.8 20 30
PGM5616D 150 100 -30 ~ +70 560 5 ~ 10 1.0 0.6 20 30
PGM5626D 150 100 -30 ~ +70 560 8 ~ 20 2.0 0.6 20 30
PGM5637D 150 100 -30 ~ +70 560 16 ~ 50 5.0 0.7 20 30
PGM5639D 150 100 -30 ~ +70 560 30 ~ 90 10.0 0.8 20 30
PGM5649D 150 100 -30 ~ +70 560 50 ~ 160 20.0 0.8 20 30
PGM5659D 150 100 -30 ~ +70 560 150 ~ 300 20.0 0.8 20 30

Hermetical Package Characteristics & Dimensions (mm) - PGM55

cds,photo,photoresistor,5mm cds,photo,photoresistor,dimensions

5mm PGM55***-MP Series - Light Dependent Resistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM5506-MP 100 90 -30 ~ +70 540 2 ~ 6 0.15 0.6 30 40
PGM5516-MP 100 90 -30 ~ +70 540 5 ~ 10 0.2 0.6 30 40
PGM5526-MP 150 100 -30 ~ +70 540 8 ~ 20 1.0 0.6 20 30
PGM5537-MP 150 100 -30 ~ +70 540 16 ~ 50 2.0 0.7 20 30
PGM5539-MP 150 100 -30 ~ +70 540 30 ~ 90 5.0 0.8 20 30
PGM5549-MP 150 100 -30 ~ +70 540 45 ~ 140 10.0 0.8 20 30

Epoxy Resin Package Characteristics & Dimensions (mm) - PGM12

cds,photo,photoresistor,12mm cds,photo,photoresistor,dimensions

12mm PGM12*** Series - CDS Photoresistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM1200 250 250 -30 ~ +70 560 2~5 1.0 0.6 30 40
PGM1201 250 250 -30 ~ +70 560 4~10 2.0 0.7 30 30
PGM1202 250 250 -30 ~ +70 560 8~20 5.0 0.7 30 30
PGM1203 250 250 -30 ~ +70 560 18~50 10 0.8 30 30
PGM1204 250 250 -30 ~ +70 560 45~150 20 0.8 30 30
PGM1205 250 250 -30 ~ +70 560 140~300 20 0.8 30 30

Hermetical Package Characteristics & Dimensions (mm) - PGM12

cds,photo,photoresistor,12mm cds,photo,photoresistor,dimensions

12mm PGM12***-MP Series - Light Dependent Resistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM1200-MP 250 250 -30 ~ +70 560 2~5 1.0 0.6 30 40
PGM1201-MP 250 250 -30 ~ +70 560 4~10 2.0 0.7 30 30
PGM1202-MP 250 250 -30 ~ +70 560 8~20 5.0 0.7 30 30
PGM1203-MP 250 250 -30 ~ +70 560 18~50 10 0.8 30 30
PGM1204-MP 250 250 -30 ~ +70 560 45~150 20 0.8 30 30
PGM1205-MP 250 250 -30 ~ +70 560 140~300 20 0.8 30 30

Epoxy Resin Package Characteristics & Dimensions (mm) - PGM20

cds,photo,photoresistor,12mm cds,photo,photoresistor,dimensions

20mm PGM20*** Series - CDS Photoresistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM2000 500 500 -30 ~ +70 560 2~5 1.0 0.6 30 40
PGM2001 500 500 -30 ~ +70 560 4~10 2.0 0.7 30 30
PGM2002 500 500 -30 ~ +70 560 8~20 5.0 0.7 30 30
PGM2003 500 500 -30 ~ +70 560 18~50 10 0.8 30 30
PGM2004 500 500 -30 ~ +70 560 45~150 20 0.8 30 30
PGM2005 500 500 -30 ~ +70 560 140~300 20 0.8 30 30

Hermetical Package Characteristics & Dimensions (mm) - PGM20

cds,photo,photoresistor,12mm cds,photo,photoresistor,dimensions

20mm PGM20***-PP Series - Light Dependent Resistors

Model Vmax (VDC) Pmax (mW) Ambient 
Temp
(°C)
Spectral Peak (nm) Photo 
Resistance
(10Lx) (KΩ)
Dark Resistance (MΩ)min γ
min
Response Time
(ms)
Rise Decay
PGM2000-PP 500 500 -30 ~ +70 560 2~5 1.0 0.6 30 40
PGM2001-PP 500 500 -30 ~ +70 560 4~10 2.0 0.7 30 30
PGM2002-PP 500 500 -30 ~ +70 560 8~20 5.0 0.7 30 30
PGM2003-PP 500 500 -30 ~ +70 560 18~50 10 0.8 30 30
PGM2004-PP 500 500 -30 ~ +70 560 45~150 20 0.8 30 30
PGM2005-PP 500 500 -30 ~ +70 560 140~300 20 0.8 30 30

Physical and Environmental Characteristics

ITEM CONDITIONS PERFORMANCE
Vibration Frequency: 50Hz
Swing: 1.5mm with
Directions: parallel to ceramic substrate normal to ceramic substrate. Duration:2h
No visible damage
Solderability Put the terminals into welding tank at temp. 230±5°C for 2±0.5s (terminal roots are 5mm away from the tin surface). wetting>95%
Temperature Changing Change of temperature in accordance with: TA: -40°C TB: +60°C Number of cycles: 5  Exposure duration: 30min Drift of R10 = ± 20%
No visible damage
Wire Terminals Strength Bend the wire terminal at its root to 90 degree,and then bend it to a opposite direction. No visible damage
Constant load Temperature At 25±5°C
Illumination: 150lux at rated power
Duration: 600h
No visible damage
Constant humidity and heat 1. Put the device in test box at Temperature: 60±5°C
Humidity: 90-95% Illumination: 0lux Duration: 100h
2. Take the device and measure after24h at normal temperature and humidity.
Drift of R10= ± 30%
No visible damage

Spectral Response

cds,photo,photoresistors

Terminology

  1. Light Resistance: Measured at 10 lux with standard light A (2854K-color temperature) and 2hr. preillumination at 400-600 lux prior testing.
  2. Dark Resistance: Measured at 10th seconds after closing 10 lux.
  3. Gamma characteristic:
    Under 10 lux and 100 lux and given by
    γ = log(R10/R100) / log(100/10) = log(R10/R100)
    R10, R100: resistance at 10 lux and 100 lux. The tolerance of  γ is ±0.1.
  4. Pmax: Max. power dissipation at ambient temperature of 25°C.At higher ambient temperature,the maximum power permissible may be lowered.
  5. Vmax: Max. voltage in darkness that may be applied to the device continuously.
  6. Spectral peak: Spectral sensitivity of photoresistors depends on the wavelength of light they are exposed to and in accordance with fig 2. The tolerance of spectral peak is ±50nm.

How to Order - Photoresistor, Light Dependent Resistors PGM

PGM5516 P
Part Number
Packaging

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PGM Series - Light Dependent Resistors (LDR), Photoresistor (CDS)