| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Contact Material | Viewing Angle | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VTT3425LAH | Excelitas Technologies | PHOTOTRANSISTOR LONG T1 PKG | VTT | - | Bulk | Through Hole | - | - | - | 10° | Radial | |
| RPM-012PBT87 | LAPIS Semiconductor | PHOTOTRANS SIDE VIEW SMD | - | -30°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | 24° | 4-SMD, No Lead | |
| SDP8406-003 | Honeywell Sensing and Productivity Solutions | PHOTOTRANSISTOR NPN SIDE LOOK | - | -40°C ~ 85°C (TA) | Bulk | Through Hole, Right Angle | - | - | - | 50° | Radial | |
| QSD128 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANS IR 880NM BLACK 5MM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 24° | Radial, 5mm Dia (T 1 3/4) | |
| PNA1801L00NC | Panasonic | NPN PHOTOTRANS 850NM T1 | - | - | - | Through Hole | - | - | - | 60° | T-1 | |
| EAPSY2520A2 | Everlight Electronics | DETECTOR SUBMINIATURE T 3/4 | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | 2-SMD | |
| OP800D | Optek Technology / TT Electronics | PHOTOTRANS SILICON NPN HERM TO18 | - | -65°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | - | TO-206AA, TO-18-3 Metal Can | |
| SFH 3401-2/3-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN SMART DILSMD | - | -40°C ~ 100°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | 120° | 3-SMD, Gull Wing | |
| QSD8T120B | QT Brightek | PHOTOTRANSISTOR IR 5MM BK LENS | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 30° | Radial | |
| BPX 81-3/4 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 850NM TH | - | -40°C ~ 80°C (TA) | Bulk | Through Hole | - | - | - | 36° | Radial - 2 Leads |
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.