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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PT334-6C | Texas Instruments | PHOTOTRANSISTOR 5MM CLEAR RAD | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PT5529B/L2/H2-F | Texas Instruments | PHOTOTRANSISTOR SIDE BLACK RAD | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PT5529B/L2-F | Texas Instruments | PHOTOTRANSISTOR SIDE BLACK RAD | - | -40°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PT42-21B/TR8 | Texas Instruments | PHOTOTRANSISTOR 1.8MM RND BK SMD | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | - | |
| PT481E00000F | Texas Instruments | PHOTO TRANS BLUE LEN 800NM SIDE | - | -25°C ~ 85°C (TA) | Tube | Through Hole | - | - | - | - | - | |
| PT2559B/L2/H2-F | Texas Instruments | PHOTOTRANSISTOR SIDE FACE BK RAD | - | -25°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PT26-21B/TR8 | Texas Instruments | PHOTOTRANSISTOR FLAT BK MINI SMD | - | -25°C ~ 85°C (TA) | Tape & Reel (TR) | Surface Mount | - | - | - | - | - | |
| PT204-6C | Texas Instruments | PHOTOTRANSISTOR 3MM NPN CLR RAD | - | -25°C ~ 85°C (TA) | Bulk | Through Hole | - | - | - | - | - | |
| PT12-21C/TR8 | Texas Instruments | PHOTOTRANSISTOR WATER CLR RA SMD | - | -25°C ~ 85°C (TA) | Original-Reel® | Surface Mount, Right Angle | - | - | - | - | - | |
| PT4800FB | Texas Instruments | PHOTO TRANS BLACK LEN 860NM SIDE | - | - | Tube | 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.