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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OP599D | Optek Technology / TT Electronics | PHOTOTRNS PLSTC SILCN NPN T1 3/4 | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SFH 309-4 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 3MM 860NM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| EAPSR3216A1 | Everlight Electronics | SMD IR DETECTOR - 1.6MM ROUND SU | - | -25°C ~ 85°C (TA) | - | Surface Mount | - | - | - | - | - | |
| SFH 3605-3/4-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR | - | -40°C ~ 100°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | - | |
| BPX 43-4 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 880NM TO-18 | - | -40°C ~ 125°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PNA1801LS0NC | Panasonic | NPN PHOTOTRANS 850NM T1 | - | - | - | Through Hole | - | - | - | - | - | |
| VEMT2523SLX01 | Electro-Films (EFI) / Vishay | NPN PHOTO TRANSISTOR SMD SIDE LO | Automotive, AEC-Q101 | -40°C ~ 100°C (TA) | Cut Tape (CT) | Surface Mount, Right Angle | - | - | - | - | - | |
| LPT 80A | OSRAM Opto Semiconductors, Inc. | PHOTOTRANS NPN 850NM SIDELOOKER | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OP520DA | Optek Technology / TT Electronics | PHOTODARLINGTON NPN BLK 1206 SMD | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | - | |
| SFH 303 FA-3/4 RN23C | OSRAM Opto Semiconductors, Inc. | PHOTOTRANS T1 3/4 5MM NPN | - | - | Bulk | Through Hole | - | - | - | - | - |
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.