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| PartNumber | PT12-21C/TR8 | PT12-21B/TR8 | PT12-21B-TR8 |
| Description | Phototransistors IR Phototransistor | Optical Sensors Phototransistors Infrared Phototransisto | |
| Manufacturer | Everlight | Everlight Electronics Co Ltd | - |
| Product Category | Phototransistors | Optical Sensors - Phototransistors | - |
| RoHS | Y | - | - |
| Product | Phototransistors | Phototransistors | - |
| Package / Case | SMD | - | - |
| Mounting Style | SMD/SMT | - | - |
| Peak Wavelength | 940 nm | - | - |
| Maximum On State Collector Current | 1.14 mA | 1.14 mA | - |
| Collector Emitter Voltage VCEO Max | 30 V | - | - |
| Collector Emitter Breakdown Voltage | 30 V | 30 V | - |
| Collector Emitter Saturation Voltage | 0.4 V | 0.4 V | - |
| Dark Current | 100 nA | 100 nA | - |
| Rise Time | 15 us | 15 us | - |
| Fall Time | 15 us | 15 us | - |
| Pd Power Dissipation | 75 mW | - | - |
| Minimum Operating Temperature | - 25 C | - 25 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Height | 2 mm | - | - |
| Length | 3 mm | - | - |
| Lens Color/Style | Water Clear | - | - |
| Packaging | Reel | Digi-ReelR Alternate Packaging | - |
| Wavelength | 940 nm | 940nm | - |
| Width | 1 mm | - | - |
| Brand | Everlight | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Phototransistors | - | - |
| Factory Pack Quantity | 2000 | - | - |
| Subcategory | Optical Detectors and Sensors | - | - |
| Series | - | - | - |
| Package Case | - | 2-SMD, No Lead | - |
| Operating Temperature | - | -25°C ~ 85°C (TA) | - |
| Mounting Type | - | Surface Mount | - |
| Power Max | - | 75mW | - |
| Current Collector Ic Max | - | 50mA | - |
| Voltage Collector Emitter Breakdown Max | - | 30V | - |
| Orientation | - | Side View | - |
| Current Dark Id Max | - | 100nA | - |
| Viewing Angle | - | - | - |
| Pd Power Dissipation | - | 75 mW | - |
| Collector Emitter Voltage VCEO Max | - | 30 V | - |