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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Output Type | Sensing Method | Sensing Distance | Response Time |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OP775A | Optek Technology / TT Electronics | PHOTOTRNS NPN W/CAP SIDE LOOK | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OP500DA | Optek Technology / TT Electronics | PHOTODARLINGTON NPN CLR 0805 SMD | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | - | |
| QSE114E3R0 | AMI Semiconductor / ON Semiconductor | PHOTOTRANSISTOR IR 30V SIDELOOKR | - | -40°C ~ 100°C (TA) | Tape & Reel (TR) | Through Hole | - | - | - | - | - | |
| SFH 313 FA-2/3 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 5MM 870NM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OP506C | Optek Technology / TT Electronics | PHOTOTRANSISTOR 3MM 935NM NPN | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| QSD722 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANS IR 880NM TO-18 | - | -40°C ~ 100°C (TA) | - | Through Hole | - | - | - | - | - | |
| SD1440-004L | Honeywell Sensing and Productivity Solutions | PHOTOTRANSISTOR COAXIAL PACK | - | -55°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SD2440-002 | Honeywell Sensing and Productivity Solutions | PHOTOTRANSISTOR PILL PACK | - | -55°C ~ 125°C (TA) | Bulk | PCB, Through Hole | - | - | - | - | - | |
| OP593B | Optek Technology / TT Electronics | PHOTOTRNS PLSTIC SILCN NPN TO-18 | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SMD2440-021 | Honeywell Sensing and Productivity Solutions | DIODE IR EMITTING SMD GLASS LENS | SMD | -55°C ~ 125°C (TA) | Original-Reel® | Surface Mount | - | - | - | - | - |
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.