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| PartNumber | RPI-121 | RPI-122 | RPI-122F |
| Description | SENSOR OPT SLOT PHOTOTRAN PCB MT | Optical Sensors Optical Switches, Transmissive, Phototransistor Output 0.25mm slit width 0.18mA min 0.7V | SENSOR OPT SLOT PHOTOTRAN PCB MT |
| Manufacturer | Rohm Semiconductor | - | Rohm Semiconductor |
| Product Category | Optical Sensors - Photointerrupters - Slot Type - Transistor Output | - | Optical Sensors - Photointerrupters - Slot Type - Transistor Output |
| Series | - | - | - |
| Packaging | Bulk | - | Bulk |
| Package Case | PCB Mount | - | PCB Mount |
| Operating Temperature | -25°C ~ 85°C | - | -25°C ~ 85°C |
| Mounting Type | Through Hole | - | Through Hole |
| Voltage Supply | - | - | - |
| Current Supply | - | - | - |
| Sensing Method | Transmissive | - | Transmissive |
| Output Configuration | Phototransistor | - | Phototransistor |
| Current DC Forward If Max | 50mA | - | 50mA |
| Current Collector Ic Max | 30mA | - | 30mA |
| Voltage Collector Emitter Breakdown Max | 30V | - | 30V |
| Response Time | 10μs, 10μs | - | 10μs, 10μs |
| Sensing Distance | 0.039" (1mm) | - | 0.031" (0.8mm) |