About Phototransistors

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
  
                       
PT19-21B/L41/TR8(BY)


20mA NPN 30V 75mW 100nA 940nm 0603 Phototransistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 51687
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USD 0.0248
Multiples of: 10

                   
PT91-21C/TR10


Phototransistors Phototransistor
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 49416
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USD 0.0558
Multiples of: 5

           100 nA       
SFH 309 FA-5


Phototransistors PHOTOTRANSISTOR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

OSRAM Availability : 47651
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USD 0.1875
Multiples of: 1

PhototransistorsT - 1 15 mA Through Hole900 nm-35 V35 V200 mV15 mA8 us8 us165 mW- 40 C+ 100 C  
PT42-21B-TR8


Phototransistors IR Phototransistor
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Everlight Availability : 46808
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USD 0.0548
Multiples of: 5

                   
PT204-6B


Phototransistors Infrared Phototransistor
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Everlight Availability : 44883
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USD 0.0311
Multiples of: 10

                   
PT26-51B/TR8


Phototransistors Phototransistor
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Everlight Availability : 44272
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USD 0.0506
Multiples of: 5

PhototransistorsSIDE LOOKER75 mW1 mA Smd/Smt940 nm 30 V60 V0.4 V100 nA15 us15 us75 mW- 25 C+ 85 C  
VEMT2023X01


Phototransistors Gullwing 790-970nm +/-35 deg
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Vishay Availability : 43791
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USD 0.2783
Multiples of: 1

Phototransistors 100 mW50 mA100 nA   20 V20 V0.4 V   100 mW- 40 C+ 100 CVemtAec - Q101
PT26-21B/TR8


Phototransistors Phototransistor
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Everlight Availability : 42614
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USD 0.0347
Multiples of: 10

Phototransistors 75 mW1 mA    30 V60 V0.4 V50 nA15 us15 us75 mW- 25 C+ 85 C  
PT908-7C(BIN3)


20mA NPN 30V 75mW 100nA 860nm Plugin,L=4.5mm Phototransistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Everlight Availability : 41799
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USD 0.0312
Multiples of: 2

                   
SFH 3716


Phototransistors Light Sensor ChipLED
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Osram Availability : 37495
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USD 0.2519
Multiples of: 1

Phototransistors0805 (2012 METRIC) 20 mA SMD/SMT  5.5 V5.5 V 3 nA   - 40 C+ 100 CSFH 3716AEC - Q101
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