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 182-8043
製造零件編號RPT-37PB3F
BrandROHM
TWD9.20
個 (以毎袋:2000)
單位
Infrared 10µs 10µs 1 2 (Minimum)mA 0.5µA ±36 ° - 2 Through Hole - 3.8 Dia. x 5.2mm 30mA 3.8mm
RS庫存編號 178-0631
製造零件編號RPI-222
BrandROHM
TWD24.30
/個 (每包:10個)
單位
Infrared 10µs 10µs - 0.95mA 0.5µA - NPN 4 Through Hole - 4.9 x 2.6 x 3.3mm 30mA -
RS庫存編號 171-5419
製造零件編號RPT-38PB3F
BrandROHM
TWD20,462.00
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 171-5581
製造零件編號SML-810TBT86
BrandROHM
TWD10.90
/個 (每包:25個)
單位
- - - 1 3.8mA 0.5µA - NPN 2 Surface Mount SMD 3.4 x 1.25 x 1.1mm 30mA -
RS庫存編號 178-0647
製造零件編號RPM-20PB
BrandROHM
TWD13.50
/個 (每包:20個)
單位
Visible Light 10µs 10µs - 0.5 (Minimum)mA 0.5µA ±14 ° - 2 Through Hole DIP 4.3 x 3.2 x 4.4mm 30mA -
RS庫存編號 171-5580
製造零件編號RPT-38PB3F
BrandROHM
TWD15.90
/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 178-0028
製造零件編號RPI-222
BrandROHM
TWD16.50
個 (以毎袋:2000)
單位
Infrared 10µs 10µs - 0.95mA 0.5µA - NPN 4 Through Hole - 4.9 x 2.6 x 3.3mm 30mA -
RS庫存編號 182-8113
製造零件編號RPT-37PB3F
BrandROHM
TWD14.00
/個 (每包:20個)
單位
Infrared 10µs 10µs 1 2 (Minimum)mA 0.5µA ±36 ° - 2 Through Hole - 3.8 Dia. x 5.2mm 30mA 3.8mm
RS庫存編號 178-0029
製造零件編號RPM-20PB
BrandROHM
TWD10.90
個 (以毎袋:2000)
單位
Visible Light 10µs 10µs - 0.5 (Minimum)mA 0.5µA ±14 ° - 2 Through Hole DIP 4.3 x 3.2 x 4.4mm 30mA -
RS庫存編號 171-5420
製造零件編號SML-810TBT86
BrandROHM
TWD5.10
個 (在毎卷:3000)
單位
- - - 1 3.8 0.5µA - NPN 2 Surface Mount SMD 3.4 x 1.25 x 1.1mm 30mA -
RS庫存編號 124-6802
製造零件編號RPT-34PB3F
BrandROHM
TWD15.60
/個 (每包:25個)
單位
Infrared 10µs 10µs 1 2000µA 0.5µA ±36 ° NPN 2 Through Hole T-1 3.8 (Dia.) x 5.2mm 30mA 3.8mm