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| PartNumber | RPI-0128T81 | RPI-0128 | RPI-0128W2 |
| Description | Optical Switches, Transmissive, Phototransistor Output PHOTOINTERRUPTER ULTRAMIN SMD TYPE | Optical Switches, Transmissive, Phototransistor Output Ultramin, SMD Type Photointerrupter | |
| Manufacturer | ROHM Semiconductor | ROHM Semiconductor | - |
| Product Category | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | - |
| RoHS | Y | Y | - |
| Slot Width | 1.2 mm | 1.2 mm | - |
| Aperture Width | 0.3 mm | - | - |
| Collector Emitter Voltage VCEO Max | 30 V | 30 V | - |
| Maximum Collector Current | 30 mA | 30 mA | - |
| If Forward Current | 5 mA | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Minimum Operating Temperature | - 25 C | - 25 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Series | RPI-0128T81 | RPI-0128 | - |
| Packaging | Reel | Bulk | - |
| Output Type | Phototransistor | Phototransistor | - |
| Sensing Distance | 1.2 mm | - | - |
| Sensing Method | Transmissive, Slotted | Transmissive, Slotted | - |
| Wavelength | 800 nm | 800 nm | - |
| Brand | ROHM Semiconductor | ROHM Semiconductor | - |
| Number of Channels | 1 Channel | - | - |
| Fall Time | 10 us | 10 us | - |
| Pd Power Dissipation | 80 mW | 80 mW | - |
| Product Type | Optical Switches, Transmissive, Phototransistor Output | Optical Switches, Transmissive, Phototransistor Output | - |
| Rise Time | 10 us | 10 us | - |
| Factory Pack Quantity | 2000 | 7500 | - |
| Subcategory | Optical Switches | Optical Switches | - |
| Moisture Sensitive | - | Yes | - |
| Vf Forward Voltage | - | 1.35 V | - |
| Vr Reverse Voltage | - | 5 V | - |
| Part # Aliases | - | RPI-0128 | - |