A Phototransistor is a two-lead or three-lead semiconductor that is more sensitive than a photodiode. It senses light levels and uses them to alter currents to create an electrical signal.
The bipolar semiconductor is can be made from silicon or another semi-conductive material.
How do Phototransistors work?
Once detection of light such as IR (infrared), visible light or UV (Ultraviolet) is successful, the device will alter a current flowing between an emitter and collector, depending on the light and level of intensity it receives.
Features and Benefits
• Reflow surface-mounting support
• Small, ultra-thin
• High sensitivity
• Electromagnetic noise resistance
• High linearity
• Produce a higher current than photodiodes
Where might I use a Phototransistor?
A photo transistor can be used in many different devices and applications such as:
• Photo interrupters
• Industrial electronics
• Human detection devices
• TV
• Air conditioning
• Digital photo-frames
• PCs or Laptops
• Automatic switches (lighting equipment)
• IP cameras
• Security devices
• Home electronics
Phototransistors
281
Filters
| Description | Price | Spectrums Detected | Typical Fall Time | Typical Rise Time | Number of Channels | Maximum Light Current | Maximum Dark Current | Angle of Half Sensitivity | Polarity | Number of Pins | Mounting Type | Package Type | Dimensions | Collector Current | Diameter | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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RS Stock No.
168-5553
Mfr. Part No.SFH 309 FA-4
|
SGD0.292
Each (In a Bag of 2000)
units
|
Infrared | 7µs | 7µs | 1 | 4500µA | 1 (≤ 50)nA | ±12 ° | NPN | 2 | Through Hole | 3mm (T-1) | 3.1 (Dia.) x 5.2mm | 15mA | 3.1mm |
|
|
RS Stock No.
876-8710
Mfr. Part No.SFH 309 FA-4
|
SGD0.772
Each (In a Pack of 25)
units
|
Infrared | 7µs | 7µs | 1 | 4500µA | 1 (≤ 50)nA | ±12 ° | NPN | 2 | Through Hole | 3mm (T-1) | 3.1 (Dia.) x 5.2mm | 15mA | 3.1mm |
|
RS Stock No.
708-2810
Mfr. Part No.BPW77NB
BrandVishay
|
SGD5.242
Each (In a Bag of 5)
units
|
Infrared, Visible Light | 5µs | 6µs | 1 | 20000µA | 100nA | 20 ° | NPN | 3 | Through Hole | TO-18 | 5.5 x 5.5 x 6.15mm | 50mA | - |
|
|
RS Stock No.
145-1931
Mfr. Part No.BPW77NB
BrandVishay
|
SGD2.31
Each (In a Bag of 1000)
units
|
Infrared, Visible Light | 5µs | 6µs | 1 | 20000µA | 100nA | 20 ° | NPN | 3 | Through Hole | TO-18 | 5.5 x 5.5 x 6.15mm | 50mA | - |
|
RS Stock No.
908-7037
Mfr. Part No.OP805SL
BrandOptek
|
SGD3.652
Each (In a Pack of 10)
units
|
Infrared | 7µs | 7µs | 1 | - | 100nA | - | NPN | 3 | Through Hole | TO-18 | 5.84 (Dia.) x 6.86 Hmm | 50mA | 5.84mm |
|
RS Stock No.
700-0767
Mfr. Part No.TEMT7100X01
BrandVishay
|
SGD1.102
Each (In a Pack of 10)
units
|
Infrared | - | - | 1 | 675µA | 100nA | 120 ° | NPN | 2 | Surface Mount | - | 2 x 1.25 x 0.85mm | 20mA | - |
|
RS Stock No.
145-1923
Mfr. Part No.TEPT4400
BrandVishay
|
SGD0.443
Each (In a Bag of 1000)
units
|
Visible Light | - | - | 1 | 200µA | 50nA | 60 ° | - | 2 | Through Hole | 3mm (T-1) | 3.2 x 3.2 x 4.5mm | 20mA | - |
|
RS Stock No.
165-2333
Mfr. Part No.TEMT7100X01
BrandVishay
|
SGD0.452
Each (On a Reel of 3000)
units
|
Infrared | - | - | 1 | 675µA | 100nA | 120 ° | NPN | 2 | Surface Mount | - | 2 x 1.25 x 0.85mm | 20mA | - |
|
RS Stock No.
654-8255
Mfr. Part No.BP 103-3/4
|
SGD3.386
Each (In a Pack of 5)
units
|
Infrared, Visible Light | 12µs | 12µs | 1 | 950µA | 50nA | 110 ° | NPN | 3 | Through Hole | TO-18 | 5.5 x 5.5 x 3.6mm | 100mA | - |
|
|
RS Stock No.
700-0776
Mfr. Part No.TEPT4400
BrandVishay
|
SGD0.722
Each (In a Pack of 10)
units
|
Visible Light | - | - | 1 | 200µA | 50nA | 60 ° | - | 2 | Through Hole | 3mm (T-1) | 3.2 x 3.2 x 4.5mm | 20mA | - |
|
RS Stock No.
912-8560
Mfr. Part No.SFH 314 FA-2/3
|
SGD0.372
Each (In a Bag of 1000)
units
|
Infrared | 14µs | 14µs | 1 | 8600µA | 200nA | 80 ° | NPN | 2 | Through Hole | T-1 3/4 | 5.9 x 5.9 x 6.9mm | 50mA | - |
|
RS Stock No.
654-8867
Mfr. Part No.SFH 314 FA-2/3
|
SGD0.819
Each (In a Pack of 10)
units
|
Infrared | 14µs | 14µs | 1 | 8600µA | 200nA | 80 ° | NPN | 2 | Through Hole | 5mm (T-1 3/4) | 5.9 x 5.9 x 6.9mm | 50mA | - |
|
|
RS Stock No.
168-5301
Mfr. Part No.BP 103-3/4
|
SGD1.27
Each (On a Tape of 1000)
units
|
Infrared, Visible Light | 12µs | 12µs | 1 | 950µA | 50nA | 110 ° | NPN | 3 | Through Hole | TO-18 | 5.5 x 5.5 x 3.6mm | 100mA | - |
|
RS Stock No.
912-8514
Mfr. Part No.SFH 309 FA-4/5
|
SGD0.25
Each (In a Bag of 2000)
units
|
Infrared | 7µs | 7µs | 1 | 7200µA | 200nA | 24 ° | NPN | 2 | Through Hole | T-1 | 4 x 4 x 5.2mm | 15mA | - |
|
RS Stock No.
665-5381
Mfr. Part No.SFH 309-5/6
|
SGD0.772
Each (In a Pack of 10)
units
|
Infrared, Ultraviolet, Visible Light | 7µs | 7µs | 1 | 11200µA | 200nA | 24 ° | NPN | 2 | Through Hole | 3mm (T-1) | 4 x 4 x 5.2mm | 15mA | - |
|
|
RS Stock No.
168-5378
Mfr. Part No.SFH 309-5/6
|
SGD0.271
Each (In a Bag of 2000)
units
|
Infrared, Ultraviolet, Visible Light | 7µs | 7µs | 1 | 11200µA | 200nA | 24 ° | NPN | 2 | Through Hole | 3mm (T-1) | 4 x 4 x 5.2mm | 15mA | - |
|
RS Stock No.
654-8019
Mfr. Part No.SFH 309 FA-4/5
|
SGD0.649
Each (In a Pack of 10)
units
|
Infrared | 7µs | 7µs | 1 | 7200µA | 200nA | 24 ° | NPN | 2 | Through Hole | 3mm (T-1) | 4 x 4 x 5.2mm | 15mA | - |
|
RS Stock No.
168-5379
Mfr. Part No.SFH 313 FA-3/4
|
SGD0.372
Each (In a Bag of 1000)
units
|
Infrared | 14µs | 14µs | 1 | 12500µA | 200nA | 20 ° | NPN | 2 | Through Hole | 5mm (T-1 3/4) | 5.9 x 5.9 x 9mm | 50mA | - |
|
|
RS Stock No.
665-5390
Mfr. Part No.SFH 313 FA-3/4
|
SGD0.871
Each (In a Pack of 10)
units
|
Infrared | 14µs | 14µs | 1 | 12500µA | 200nA | 20 ° | NPN | 2 | Through Hole | 5mm (T-1 3/4) | 5.9 x 5.9 x 9mm | 50mA | - |
|
RS Stock No.
177-4916
Mfr. Part No.PT480FE0000F
BrandSharp
|
SGD0.443
Each (In a Bag of 2000)
units
|
Infrared | 3.5µs | 3µs | 1 | 3000µA | 100nA | 26 ° | NPN | 2 | Through Hole | - | 3 x 2.95 x 4mm | 20mA | - |
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