| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Contact Material | Viewing Angle | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AA3528AP3C | Kingbright | PHOTOTRANSISTOR IR NPN 940NM SMD | - | - | Cut Tape (CT) | Surface Mount | - | - | - | - | 4-PLCC | |
| SD1440-004 | Honeywell Sensing and Productivity Solutions | PHOTOTRANSISTOR COAXIAL PACK | - | -55°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | 24° | Coaxial, Metal Can | |
| TEKS5423X01-GS18 | Electro-Films (EFI) / Vishay | PHOTOTRANSISTOR NPN TH | - | - | Tape & Reel (TR) | - | - | - | - | - | - | |
| OP560A | Optek Technology / TT Electronics | PHOTODARL SILICON NPN SIDE LOOK | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 56° | Radial | |
| QSD724 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANS IR 880NM TO-18 | - | -40°C ~ 100°C (TA) | - | Through Hole | - | - | - | 40° | TO-18-2 | |
| SFH 314-3 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 80° | Radial - 2 Leads | |
| KU163C-23-TR | Stanley Electric | REFLECTOR SENSOR SMD | - | -30°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | 4-SMD, No Lead | |
| SFH 3400-2/3-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 850NM SMD | - | -40°C ~ 100°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | 120° | 3-SMD, Gull Wing | |
| BPX 38-3 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 880NM TO-18 | - | -40°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | 80° | TO-206AA, TO-18-3 Metal Can | |
| VTT9102H | Excelitas Technologies | PHOTOTRANSISTOR IN TO-106 PKG | VTT | - | Bulk | Through Hole | - | - | - | 42° | TO-106-3 Domed |
Phototransistors are semiconductor devices that convert light energy into electrical signals. They consist of a semiconductor junction and a transparent window that allows light to enter and interact with the semiconductor material. Phototransistors amplify the current generated by incident light, making them suitable for applications requiring high sensitivity to light levels, such as optical encoders, ambient light sensing, and infrared remote control systems.