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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BPX 81-3 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 850NM TH | - | -40°C ~ 80°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| QSD123 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANS IR 880NM BLACK 5MM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SDP8405-003 | Honeywell Sensing and Productivity Solutions | PHOTOTRANSISTOR SILICON NPN T-1 | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| QSD122 | AMI Semiconductor / ON Semiconductor | IC PHOTOTRANS IR 880NM BLACK 5MM | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OP505D | Optek Technology / TT Electronics | PHOTOTRANSISTOR SILICON NPN T-1 | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OP509A | Optek Technology / TT Electronics | PHOTOTRANS SILICON NPN SIDE LOOK | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SFH 313 FA-3 AN23 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| EAPLP05RDQA0 | Everlight Electronics | DETECTOR THRU-HOLE | - | -25°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| OED-ST-1L2 | Lumex, Inc. | PHOTOTRAN 880NM CLEAR EPXY T5MM | - | -20°C ~ 80°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| SFH 3410-2/3-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN 570NM SMD | - | -40°C ~ 100°C (TA) | Tape & Reel (TR) | 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.