About Phototransistors

On Semiconductor Phototransistors

Phototransistors are semiconductor devices that convert light into electrical signals. They are similar to regular transistors in the sense that they both employ an amplifier and two electrodes, with the dividing line between them allowing current to flow through. However, unlike regular transistors, phototransistors use a light source rather than an electric power source to control the flow of current. When light shines on the phototransistor, it creates a voltage differential between the base and collector electrodes that can be used to control the current that flows through the device. Phototransistors are often used in light-sensing applications, such as automatic door openers, fire alarms, and robotics.

Phototransistors

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(Ex. GST)(▲▼)		Enter Qty ProductPackage / CaseMaximum Power DissipationMaximum On-State Collector CurrentMaximum Dark CurrentMounting StylePeak WavelengthOperating Supply VoltageCollector- Emitter Voltage VCEO MaxCollector-Emitter Breakdown VoltageCollector-Emitter Saturation VoltageDark CurrentRise TimeFall TimePd - Power DissipationMinimum Operating TemperatureMaximum Operating TemperatureSeriesQualification
  
                       
QSD123


Phototransistor; 5mm; λp max:880nm; 30V; 24°
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ON Semiconductor Availability : 3289
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USD 0.2696
Multiples of: 1

                   
KDT00030TR


Phototransistors Plastic Silicon Phototransistor
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ON Semiconductor Availability : 2954
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USD 0.4054
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QSE133


Phototransistors Phototransistor Darlington Sidelook
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ON Semiconductor Availability : 2421
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USD 0.3968
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 SIDE LOOKER 9 mA  880 nm5 V30 V30 V 100 nA20 us50 us100 mW- 40 C+ 100 CQse133 
QSB363


Phototransistors T-3/4 PHOTO SENSOR
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ON Semiconductor Availability : 2301
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USD 0.2041
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PhototransistorsT - 3/475 mW1.5 mA Smd/Smt940 nm 30 V30 V0.4 V100 nA15 us15 us75 mW- 40 C+ 85 CQsb363 
QSB363ZR


Phototransistor; 2mm; λp max:940nm; 5V; 24°; Variant: axial
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ON Semiconductor Availability : 2095
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USD 0.2343
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QTLP610CPDTR


Phototransistors Right Angle Phototransistor
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ON Semiconductor Availability : 1940
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USD 0.4827
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Phototransistors 75 mW0.5 mA    30 V30 V0.4 V100 nA15 us15 us75 mW- 25 C+ 85 CQtlp610 
KDT00030ATR


Phototransistors Phototransistor Photo Detector
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ON Semiconductor Availability : 1626
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USD 0.2634
Multiples of: 1

PhototransistorsCHIP - LED  40 nA   6 V 4.6 V    - 40 C+ 85 CKdt00030 
QSD123A4R0


Fairchild Semiconductor Phototransistors Phototrans IR Chip NPN Transistor 880nm
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ON Semiconductor Availability : 1144
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USD 0.2859
Multiples of: 1

 T - 1 3/4100 mW16 mA100 nA 880 nm5 V5 V 0.4 V 7 us7 us100 mW- 40 C+ 100 CQsd123 
QSD124A4R0


Phototransistors QSD124 T-R
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ON Semiconductor Availability : 1115
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USD 0.2588
Multiples of: 1

 T - 1 3/4100 mW 100 nA   30 V   7 us7 us - 40 C+ 100 CQsd124 
QSD124


Phototransistors 6mA PHOTO TRANS
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ON Semiconductor Availability : 960
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USD 0.354
Multiples of: 1

 T - 1 3/4100 mW 100 nA   30 V   7 us7 us - 40 C+ 100 CQsd124 
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