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Ambient Light Sensing Phototransistors IR (PT-A2-AC-850)

Phototransistor (PT-A2-AC-5-BE-850)

With RoHs compliant, Direct phototransistors are available in a wide range of packages.

A phototransistor is known as a device in which turns light source energy into electric energy. Phototransistors are very close to photoresistors but produce both current and voltage, while photoresistors simply produce current. The reason is a phototransistor includes a bipolar semiconductor and targets the energy this can be transmitted via it.

Phototransistors are light-sensitive transistors. A common type of phototransistor resembles a bipolar transistor with its base lead removed and replaced with a light-sensitive area. This is why a phototransistor has only 2 terminals instead of the usual 3. However, when the light-sensitive region is exposed to light, a small base current is generated that controls a much larger collector-to-emitter current.

Direct PT-A2-AC-850 family with environmentally friendly photosensitive sensors, control sensitivity under low illumination, stable current signal output under strong light source. Multiple light at the same time can be used to ensure consistent photosensitive effect, not false trigger. Meet the latest environmental requirements of toys. Applicable to all kinds of light control lighting products (such as night lights, lawn lamps, solar lights, etc.), automatically adjust the background light (such as LCD, mobile phones, cameras, computer cameras, security monitoring machines, etc.).

The PT-A2-AC-850 ambient light sensor, commonly used in infrared reception, Ultra-thin multi-point infrared touch screen, and all kinds of high-light or visible light interference strong products, such as various types of infrared light control, infrared on the radio, infrared reflection and other electronic products.

For the convenience of installation in all kinds of products in any position, different sizes are available upon request. So that product consistency is better, more market competitiveness. It is also achievable to provide the bright current / dark current (bright resistance / dark resistance) for the most suitable product.

Download complete specification Ambient Light Sensing Phototransistors IR (PT-A2-AC-850) PDF.

Features :
  1. Good batch consistency, small static current.
  2. Fast response speed, stable performance, beautiful appearance.
  3. The effective control distance is greater than 1.5 meters.
  4. Low current loss in the static.
Applications :
  1. Replace the traditional CDS photoresistor.
  2. Cadmium and lead free with RoHS compliant.
  3. Applicable to control all kinds of light control toys and Infrared testing equipment.
Dimensions & Configurations (Unit: mm) (PT-A2-AC-3-BE-850) & (PT-A2-AC-5-BE-850) Bullet Edge
Phototransistor (PT-A2-AC-3-BE-850) & (PT-A2-AC-5-BE-850) Dimensions
Phototransistor (PT-A2-AC-3-BE-850) & (PT-A2-AC-5-BE-850) Dimensions
Plate Edge Photosensitive Transistor (PT-A2-AC-3-BE-850)
Bullet Edge Photosensitive Transistor
PT-A2-AC-3-BE-850
Part NO. A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) H (mm) I (mm)
PT-A2-AC-3-BE-850 3.85 ± 0.20 3.00 ± 0.20 1.50 Max. 1.50 ± 0.5 2.54 ± 0.20 5.30 ± 0.20 1.00 ± 0.20 25.4 Min. 0.50 ± 0.20
PT-A2-AC-5-BE-850 5.80 ± 0.20 5.00 ± 0.20 1.50 Max. 1.50 ± 0.5 2.54 ± 0.20 8.70 ± 0.20 1.00 ± 0.20 25.4 Min. 0.50 ± 0.20
Remark:
  • The epoxy resin highest: 1.5mm max.
  • Product images, plastic color of apperence, and all other information is for reference only, goods in-kind prevail.
  • Short Lead—Collector     Long Lead—Emitter.

Dimensions & Configurations (Unit: mm) (PT-A2-AC-5-PE-850) Plate Edge
Plate Edge Photosensitive Transistor (PT-PE-850-AC-A6) Dimensions
Plate Edge Photosensitive Transistor (PT-PE-850-AC-A6) Dimensions
Plate Edge Photosensitive Transistor (PT-A2-AC-5-PE-850)
Plate Edge Photosensitive Transistor
PT-A2-AC-5-PE-850
Part NO. A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) H (mm) I (mm)
PT-A2-AC-5-PE-850 5.80 ± 0.20 5.00 ± 0.20 1.50 Max. 1.50 ± 0.5 2.54 ± 0.20 5.30 ± 0.20 1.00 ± 0.20 25.4 Min. 0.50 ± 0.20
Remark:
  • The epoxy resin highest: 1.5mm max.
  • Product images, plastic color of apperence, and all other information is for reference only, goods in-kind prevail.
  • Short Lead—Collector     Long Lead—Emitter.

Dimensions & Configurations (Unit: mm) (PT-A2-AC-5-PN-850) Plate None
Visible Light Sensor Plate None (PT-A2-AC-5-PN-850) Dimensions
Visible Light Sensor Plate None (PT-A2-AC-5-PN-850) Dimensions
Phototransistor  (PT-A2-AC-5-PN-850)
Phototransistor Plate None
(PT-A2-AC-5-PN-850)
Part NO. A (mm) B (mm) C (mm) D (mm) E (mm) F (mm)
PT-A2-AC-5-PN-850 5.00 ± 0.20 5.00 ± 0.20 5.30 ± 0.20 25.4 Min. 1.50 ± 0.50 2.54 ± 0.20
Remark:
  • The epoxy resin highest: 1.5mm max.
  • Product images, plastic color of apperence, and all other information is for reference only, goods in-kind prevail.
  • Short Lead—Collector     Long Lead—Emitter.
Electro-Optical Characteristics (Ta=25°C) (PT-A2-AC-3-BE-850) Bullet Edge
Parameter Symbol Condition Min. Typ. Max. Unit
Peak Wavelength λp \ - 850 - nm
Spectral Response Bandwidth λ \ 400 - 1100 nm
Collector-Emitter Breakdown Voltage Bvceo Ice=100µA
Ee=0mW/cm2
30 - - V
Emitter-Base Breakdown Voltage Bveco Ice=100µA
Ee=0mW/cm2
6 - - V
Collector-Emitter Saturation Voltage Vce
(sat)
Ice=2mA
Ee=1mW/cm2
- - 0.4 V
Photo Current IL(1) Vcc=5V
Ev=10Lux
15 30 45 μA
IL(2) Vcc=5V
Ev=30Lux
45 90 145 μA
IL(3) Vcc=5V
Ev=100Lux
150 300 450 μA
Collector Dark Current Iceo Vce=5V
Ev=0Lux
- - 0.1 μA
Rise Time tr Vcc=5V
Ice=1mA
RL=1000Ω
15 ms
Fall Time tf 15

Electro-Optical Characteristics (Ta=25°C) (PT-A2-AC-5-BE-850) Bullet Edge
Parameter Symbol Condition Min. Typ. Max. Unit
Peak Wavelength λp \ - 850 - nm
Spectral Response Bandwidth λ \ 400 - 1100 nm
Collector-Emitter Breakdown Voltage Bvceo Ice=100µA
Ee=0mW/cm2
30 - - V
Emitter-Base Breakdown Voltage Bveco Ice=100µA
Ee=0mW/cm2
6 - - V
Collector-Emitter Saturation Voltage Vce
(sat)
Ice=2mA
Ee=1mW/cm2
- - 0.4 V
Photo Current IL(1) Vcc=5V
Ev=10Lux
30 50 90 μA
IL(2) Vcc=5V
Ev=30Lux
90 150 270 μA
IL(3) Vcc=5V
Ev=100Lux
300 500 900 μA
Collector Dark Current Iceo Vce=5V
Ev=0Lux
- - 0.1 μA
Rise Time tr Vcc=5V
Ice=1mA
RL=1000Ω
15 ms
Fall Time tf 15

Electro-Optical Characteristics (Ta=25°C) (PT-A2-AC-5-PE-850) Plate Edge
Parameter Symbol Condition Min. Typ. Max. Unit
Peak Wavelength λp \ - 850 - nm
Spectral Response Bandwidth λ \ 400 - 1100 nm
Collector-Emitter Breakdown Voltage Bvceo Ice=100µA
Ee=0mW/cm2
30 - - V
Emitter-Base Breakdown Voltage Bveco Ice=100µA
Ee=0mW/cm2
6 - - V
Collector-Emitter Saturation Voltage Vce
(sat)
Ice=2mA
Ee=1mW/cm2
- - 0.4 V
Photo Current IL(1) Vcc=5V
Ev=10Lux
1.5 3 4.5 μA
IL(2) Vcc=5V
Ev=30Lux
4.5 9 13.5 μA
IL(3) Vcc=5V
Ev=100Lux
15 30 45 μA
Collector Dark Current Iceo Vce=5V
Ev=0Lux
- - 0.1 μA
Rise Time tr Vcc=5V
Ice=1mA
RL=1000Ω
15 ms
Fall Time tf 15

Electro-Optical Characteristics (Ta=25°C) (PT-A4-AC-5-PN-850) Plate None
Parameter Symbol Condition Min. Typ. Max. Unit
Peak Wavelength λp \ - 850 - nm
Spectral Response Bandwidth λ \ 400 - 1100 nm
Collector-Emitter Breakdown Voltage Bvceo Ice=100µA
Ee=0mW/cm2
30 - - V
Emitter-Base Breakdown Voltage Bveco Ice=100µA
Ee=0mW/cm2
6 - - V
Collector-Emitter Saturation Voltage Vce
(sat)
Ice=2mA
Ee=1mW/cm2
- - 0.4 V
Photo Current IL(1) Vcc=5V
Ev=10Lux
1.5 3 4.5 μA
IL(2) Vcc=5V
Ev=30Lux
4.5 9 13.5 μA
IL(3) Vcc=5V
Ev=100Lux
15 30 45 μA
Collector Dark Current Iceo Vce=5V
Ev=0Lux
- - 0.1 μA
Rise Time tr Vcc=5V
Ice=1mA
RL=1000Ω
15 ms
Fall Time tf 15

Absolute maximum ratings (Ta=25°C) (PT-A2-AC)
Parameter Symbol Value Unit
Collector-Emitter Voltage VCEO 30 V
Emitter-Collector-Voltage VECO 6 V
Power Dissipation PC 70 mW
Operating Temperature Range Topr -25 ~ +85 °C
Storage Temperature Tstg -40 ~ +100 °C
Relative Spectral Sensitivity vs. Wavelength (PT-A2-AC-3-BE-850)
Relative Spectral Sensitivity vs. Wavelength PT-A2-AC-3-BE-850

Photo Current vs. Illuminance (PT-A2-AC-3-BE-850)
Photo Current vs. Illuminance PT-A2-AC-3-BE-850

Dark Current vs. Ambient Temperature (PT-A2-AC-3-BE-850)
Dark Current vs. Ambient Temperature PT-A2-AC-3-BE-850
Relative Spectral Sensitivity vs. Wavelength (PT-A2-AC-5-BE-850)
Relative Spectral Sensitivity vs. Wavelength PT-A2-AC-5-BE-850

Photo Current vs. Illuminance (PT-A2-AC-5-BE-850)
Photo Current vs. Illuminance PT-A2-AC-5-BE-850

Dark Current vs. Ambient Temperature (PT-A2-AC-5-BE-850)
Dark Current vs. Ambient Temperature PT-A2-AC-5-BE-850