Phototransistors

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

...
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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
RS Stock No. 170-9650
Mfr. Part No.SFH 3400-Z
SGD0.704
Each (On a Reel of 2000)
units
Infrared, Visible Light 24µs 24µs 1 - 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -
RS Stock No. 913-3297
Mfr. Part No.SFH 314 FA
SGD0.308
Each (In a Bag of 1000)
units
Infrared 14µs 14µs 1 - 200nA 80 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.9 x 5.9 x 6.9mm 50mA -
RS Stock No. 165-6189
Mfr. Part No.BPW76B
BrandVishay
SGD2.31
Each (In a Bag of 1000)
units
Infrared, Visible Light 5µs 6µs 1 600µA 100nA ±40 ° NPN 3 Through Hole TO-18 4.7 x 5.2mm 50mA 4.7mm
RS Stock No. 455-0795
Mfr. Part No.OP644SL
BrandOptek
SGD3.264
Each (In a Pack of 5)
units
- 15µs 15µs 1 22000µA 100nA - NPN 2 - Pill 2.34 x 1.57 x 2.92mm 50mA -
RS Stock No. 912-8295
Mfr. Part No.SFH 320 FA-Z
SGD0.243
Each (On a Reel of 2000)
units
Infrared 8µs 8µs - - 50nA ±60 ° NPN 2 Surface Mount Top LED 3.4 x 3 x 1.92mm 15mA -
RS Stock No. 170-0728
Mfr. Part No.OPL810
BrandOptek
SGD4.861
Each (In a Bag of 25)
units
Infrared 70ns 70ns 1 - - - - 3 Through Hole TO-18 5.84 x 5.84 x 6.86mm - -
RS Stock No. 815-1257
Mfr. Part No.BPW76B
BrandVishay
SGD5.096
Each (In a Pack of 5)
units
Infrared, Visible Light 5µs 6µs 1 600µA 100nA ±40 ° NPN 3 Through Hole TO-18 4.7 x 5.2mm 50mA 4.7mm
RS Stock No. 876-8694
Mfr. Part No.BPX 38-4
SGD7.782
Each (In a Pack of 5)
units
Infrared 15µs 15µs 1 2300µA 20 (≤ 100)nA ±40 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 5.5mm 50mA 4.8mm
RS Stock No. 665-5378
Mfr. Part No.SFH 309-4
SGD0.827
Each (In a Pack of 10)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
RS Stock No. 919-0745
Mfr. Part No.TEMT6200FX01
BrandVishay
SGD0.697
Each (On a Reel of 3000)
units
Visible Light - - 1 39µA 50nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS Stock No. 654-9163
Mfr. Part No.SFH 305-2/3
SGD4.204
Each (In a Pack of 5)
units
Infrared, Visible Light 6µs 6µs 1 1900µA 50nA 32 ° NPN 2 Through Hole - 2.1 x 1.15 x 3.6mm 50mA -
RS Stock No. 654-7993
Mfr. Part No.LPT 80A
SGD1.00
Each (In a Pack of 10)
units
Infrared, Visible Light 10µs 10µs 1 3200µA 3nA 70 ° NPN 2 Through Hole Side Looker 4.57 x 2.54 x 5.84mm 50mA -
RS Stock No. 918-9578
Mfr. Part No.TEMT7000X01
BrandVishay
SGD0.424
Each (On a Reel of 3000)
units
Infrared, Visible Light - - 1 675µA 100nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS Stock No. 902-6654
Mfr. Part No.BPW96B
BrandVishay
SGD1.01
Each (In a Pack of 25)
units
Infrared 2.3µs 2µs - 7500µA 200nA ±20 ° NPN 2 Through Hole 5mm (T-1 3/4) 5 (Dia.) x 8.6mm 50mA 5mm
RS Stock No. 168-5289
Mfr. Part No.LPT 80A
SGD0.399
Each (In a Box of 2000)
units
Infrared, Visible Light 10µs 10µs 1 3200µA 3nA 70 ° NPN 2 Through Hole Side Looker 4.57 x 2.54 x 5.84mm 50mA -
RS Stock No. 477-6335
Mfr. Part No.PT100MF0MP1
BrandSharp
SGD0.916
Each (In a Pack of 5)
units
Infrared 6µs 5µs 1 - 100nA 30 ° NPN 2 Surface Mount - 3 x 1.5 x 2.2mm 20mA -
RS Stock No. 168-5550
Mfr. Part No.BPX 38-4
SGD3.44
Each (In a Bag of 1000)
units
Infrared 15µs 15µs 1 2300µA 20 (≤ 100)nA ±40 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 5.5mm 50mA 4.8mm
RS Stock No. 700-0779
Mfr. Part No.TEPT5600
BrandVishay
SGD0.764
Each (In a Pack of 10)
units
Infrared, Visible Light - - 1 - 50nA 40 ° NPN 2 Through Hole 5mm (T-1 3/4) 5.75 x 5.75 x 8mm 20mA -
RS Stock No. 165-6187
Mfr. Part No.BPW76A
BrandVishay
SGD2.288
Each (In a Bag of 1000)
units
Infrared, Visible Light 5µs 6µs 1 800µA 100nA ±40 ° NPN 3 Through Hole TO-18 4.7 x 5.2mm 50mA 4.7mm
RS Stock No. 168-5377
Mfr. Part No.SFH 309-4
SGD0.306
Each (In a Bag of 2000)
units
Infrared, Ultraviolet, Visible Light 7µs 7µs 1 4500µA 200nA 24 ° NPN 2 Through Hole 3mm (T-1) 4 x 4 x 5.2mm 15mA -
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