| PartNumber | OP522 | OP525 | OP525F |
| Description | Phototransistors Phototrans Clear | Phototransistors Phototransistor | Phototransistors Phototransistor |
| Manufacturer | TT Electronics | TT Electronics | TT Electronics |
| Product Category | Phototransistors | Phototransistors | Phototransistors |
| RoHS | Y | Y | Y |
| Product | Phototransistors | Phototransistors | Photodarlingtons |
| Package / Case | 1206 | 1210 | 1210 |
| Mounting Style | SMD/SMT | - | - |
| Peak Wavelength | 935 nm | - | - |
| Operating Supply Voltage | 2 V | - | - |
| Maximum On State Collector Current | 0.5 mA | 1 mA | - |
| Collector Emitter Voltage VCEO Max | 30 V | 30 V | 30 V |
| Collector Emitter Breakdown Voltage | 30 V | 30 V | 30 V |
| Collector Emitter Saturation Voltage | 0.4 V | 0.4 V | 0.4 V |
| Dark Current | 100 nA | 100 nA | 100 nA |
| Rise Time | 15 us | 15 us | 15 us |
| Fall Time | 15 us | 15 us | 15 us |
| Pd Power Dissipation | 75 mW | 75 mW | 75 mW |
| Minimum Operating Temperature | - 25 C | - 25 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 80 C |
| Packaging | Reel | Reel | Reel |
| Type | Silicon Phototransistor | Chip | Photodarlington |
| Wavelength | 890 nm | - | - |
| Brand | Optek / TT Electronics | Optek / TT Electronics | Optek / TT Electronics |
| Product Type | Phototransistors | Phototransistors | Phototransistors |
| Factory Pack Quantity | 2000 | 1500 | 1500 |
| Subcategory | Optical Detectors and Sensors | Optical Detectors and Sensors | Optical Detectors and Sensors |
| Moisture Sensitive | - | Yes | Yes |