| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Contact Material | Viewing Angle | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SFH 3100F 16.25 B9704-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR NPN | - | -40°C ~ 85°C | Bulk | Through Hole | - | - | - | 28° | Radial | |
| OP604S | Optek Technology / TT Electronics | PHOTOTRNS SILCN NPN HERMETC PILL | - | -55°C ~ 125°C (TA) | Bulk | Surface Mount | - | - | - | 36° | Pill | |
| XRNI30W-1 | SunLED | LED 3MM PHOTOTRANS WATER CLR TH | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | Radial | |
| SFH 325-3/4-Z | OSRAM Opto Semiconductors, Inc. | PHOTOTRANS NPN SIDELED 2SMD | SIDELED | -40°C ~ 100°C (TA) | Tape & Reel (TR) | Surface Mount, Right Angle | - | - | - | 120° | 2-SMD, Boomerang | |
| OP301SL | Optek Technology / TT Electronics | PHOTOTRNS SILICN NPN HERMET PILL | - | -65°C ~ 125°C (TA) | Bulk | Surface Mount | - | - | - | 35° | Pill | |
| SFH 300-3/4 | OSRAM Opto Semiconductors, Inc. | PHOTOTRANSISTOR 880NM 5MM RADIAL | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | 50° | Radial | |
| PT4800 | Sharp Microelectronics | PHOTO TRANS CLEAR LEN 800NM SIDE | - | -25°C ~ 85°C (TA) | Tube | Through Hole | - | - | - | 70° | Radial | |
| PT91-21B/TR9 | Everlight Electronics | PHOTOTRANS 1.9MM RND BLACK YOKE | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | 2-SMD, Yoke Bend | |
| PT91-21C/TR7 | Everlight Electronics | PHOTOTRANS 1.9MM RND CLEAR GWING | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | 2-SMD, Gull Wing | |
| OP705D | Optek Technology / TT Electronics | PHOTOTRANSISTR NPN W/RES T-1 | - | -40°C ~ 100°C (TA) | Bulk | Through Hole | - | - | - | - | T-1 |
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.