| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Contact Material | Viewing Angle | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OP506A | Optek Technology / TT Electronics | PHOTOTRANSISTOR 3MM 935NM NPN | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | T-1 | |
| PT333-3B | Everlight Electronics | PHOTOTRANSISTOR 5MM BLACK RAD | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | Radial, 5mm Dia (T 1 3/4) | |
| KDT00030ATR | AMI Semiconductor / ON Semiconductor | PHOTOTRANSISTOR PHOTO DET 2PLCC | - | -40°C ~ 85°C (TA) | Cut Tape (CT) | Surface Mount | - | - | - | - | 2-SMD, J-Lead | |
| PNA1605F | Panasonic | NPN PHOTO TRANSISTOR | - | - | - | Through Hole | - | - | - | 140° | Radial | |
| SFH 310 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 3MM 880NM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 50° | Radial, T-1 Lens | |
| BPY 62-4 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN NM TO-18 | - | -40°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | 16° | TO-206AA, TO-18-3 Metal Can | |
| BPW37 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANSISTOR HERM TO-18 | - | -65°C ~ 125°C (TA) | - | Through Hole | - | - | - | 20° | TO-206AA, TO-18-3 Metal Can | |
| QSD123A4R0 | AMI Semiconductor / ON Semiconductor | PHOTOTRANSISTOR DETECTOR 5MM | - | - | Tape & Reel (TR) | Through Hole | - | - | - | 24° | Radial, 5mm Dia (T 1 3/4) | |
| SFH 309-4/5 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 3MM 860NM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 24° | Radial | |
| OP509C | Optek Technology / TT Electronics | PHOTOTRANS SILICON NPN SIDE LOOK | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 50° | Radial |
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.