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庫存編號 168-5551
製造零件編號BPX 43-4
HK$12.50
個 (以毎袋:1000)
單位
Infrared 15µs 15µs 1 9500µA 20 (≤ 100)nA ±15 ° NPN 3 Through Hole TO-18 4.8 (Dia.) x 6.2mm 50mA 4.8mm
全新
RS庫存編號 184-6985
製造零件編號1541201NC3060
HK$1.857
個 (在毎卷:2000)
單位
Infrared - - 1 - 100 (Collector Emitter)nA 30 ° NPN 2 Surface Mount 1206 3.2 x 1.6 x 1.85mm 20mA -
RS庫存編號 700-0782
製造零件編號VEMT2020X01
BrandVishay
HK$5.244
/個 (每包:20個)
單位
Infrared - - 1 9000µA 100nA 30 ° NPN 2 Surface Mount - 2.3 x 2.3 x 2.77mm 50mA -
RS庫存編號 170-9646
製造零件編號SFH 3211 FA-3/4-Z
HK$1.911
個 (在毎卷:2000)
單位
Infrared 7µs 7µs 1 1000µA 200nA 120 ° NPN 2 Surface Mount SMD 3.4 x 3 x 2mm 15mA -
RS庫存編號 169-8673
製造零件編號QSB363ZR
HK$1.441
個 (在毎卷:1000)
單位
Infrared 15µs 15µs 1 - 100nA 12 ° - 2 Surface Mount Subminiature 2.7 x 2.2 x 3mm 1.5mA -
RS庫存編號 170-9642
製造零件編號SFH 3201-Z
HK$3.978
個 (在毎卷:1000)
單位
Infrared, Visible Light 24µs 24µs 1 - 200nA 120 ° NPN 6 Surface Mount SMD 4.2 x 3.4 x 2.1mm 50mA -
RS庫存編號 700-0767
製造零件編號TEMT7100X01
BrandVishay
HK$2.82
/個 (每包:10個)
單位
Infrared - - 1 675µA 100nA 120 ° NPN 2 Surface Mount - 2 x 1.25 x 0.85mm 20mA -
RS庫存編號 768-9417
製造零件編號VEMT2520X01
BrandVishay
HK$3.413
個 (以毎袋:10)
單位
Infrared, Visible Light - - 1 9000µA 100nA ±15 ° - 2 Surface Mount Subminiature 2.3 x 2.3 x 2.77mm 50mA -
RS庫存編號 177-4916
製造零件編號PT480FE0000F
BrandSharp
HK$1.832
個 (以毎袋:2000)
單位
Infrared 3.5µs 3µs 1 3000µA 100nA 26 ° NPN 2 Through Hole - 3 x 2.95 x 4mm 20mA -
RS庫存編號 168-5304
製造零件編號BPY 62-3/4
HK$9.009
Each (On a Tape of 1000)
單位
Infrared, Visible Light 12µs 12µs 1 5800µA 50nA 16 ° NPN 3 Through Hole TO-18 5.6 x 5.6 x 6.2mm 100mA -
RS庫存編號 168-5381
製造零件編號SFH 320 FA-4-Z
HK$2.234
個 (在毎卷:2000)
單位
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS庫存編號 171-5580
製造零件編號RPT-38PB3F
BrandROHM
HK$3.323
/個 (每包:20個)
單位
Visible Light - - 1 2 (Minimum)mA 0.5µA ±36 ° NPN 2 Through Hole DIP 3.4 (Dia.) x 5.2mm 30mA 3.4mm
RS庫存編號 315-876
製造零件編號PT481E00000F
BrandSharp
HK$12.77
單位
- 70000ns 80µs 1 25000µA 1000nA 26 ° NPN 2 Through Hole Side Looker 3 x 2.95 x 4mm 50mA -
RS庫存編號 169-7612
製造零件編號SD 3443-002
BrandHoneywell
HK$32.686
個 (以毎袋:100)
單位
Infrared 15µs 15µs 1 1000µA 100nA 90 ° NPN 3 Through Hole TO-46 5.56 x 5.56 x 3.89mm 1mA -
RS庫存編號 146-2097
製造零件編號QSE113
HK$1.692
個 (以毎袋:500)
單位
Infrared 8µs 8µs 1 - 100nA 25 ° - 2 Through Hole Side Looker 4.44 x 2.54 x 5.08mm 1.50mA -
RS庫存編號 665-5401
製造零件編號SFH 320 FA-4-Z
HK$2.225
/個 (每包:10個)
單位
Infrared 7µs 7µs 1 1000µA 50nA 120 ° NPN 2 Surface Mount PLCC 3.4 x 3 x 2mm 15mA -
RS庫存編號 170-9649
製造零件編號SFH 325-4-Z
HK$2.269
個 (在毎卷:2000)
單位
Infrared, Visible Light 7µs 7µs 1 80µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS庫存編號 170-9647
製造零件編號SFH 325-Z
HK$1.433
個 (在毎卷:2000)
單位
- 7µs 7µs 1 - 100nA ±60 ° Positive 2 Surface Mount PLCC 4.2 x 3.8 x 4.2mm 15mA -
RS庫存編號 915-4872
製造零件編號SFH 325 FA-4-Z
HK$3.44
/個 (每包:20個)
單位
Infrared 7µs 7µs 1 80µA 50nA 120 ° NPN 2 Surface Mount PLCC 4.2 x 4.2 x 3.8mm 15mA -
RS庫存編號 168-5320
製造零件編號SFH 3400-2/3-Z
HK$3.921
個 (在毎卷:2000)
單位
Infrared, Visible Light 24µs 24µs 1 2600µA 100nA 120 ° NPN 3 Surface Mount DIP 2.1 x 2.7 x 1.05mm 50mA -