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| PartNumber | QTLP9127GR | QTLP9127YR | QTLP9127 |
| Description | Standard LEDs - SMD Red LED Clear Square Base | Standard LEDs - SMD Red LED Clear Square Base | LED RED CLR SUBMINI T-3/4 AXIAL |
| Manufacturer | Everlight | ON Semiconductor | - |
| Product Category | Standard LEDs - SMD | Standard LEDs - SMD | - |
| RoHS | Y | Y | - |
| Product | Red LEDs | Red LEDs | - |
| Package / Case | T-3/4 | T-3/4 | - |
| Orientation | Top View | Top View | - |
| Illumination Color | Red | Red | - |
| Wavelength/Color Temperature | 660 nm | 660 nm | - |
| Luminous Intensity | 170 mcd | 170 mcd | - |
| Viewing Angle | 25 deg | 25 deg | - |
| Lens Color/Style | Water Clear | Water Clear | - |
| If Forward Current | 20 mA | 20 mA | - |
| Vf Forward Voltage | 2 V | 2 V | - |
| Length | 2.2 mm | 2.2 mm | - |
| Height | 2.8 mm | 2.8 mm | - |
| Width | 2.1 mm | 2.1 mm | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Bulk | Bulk | - |
| Brand | Everlight | ON Semiconductor / Fairchild | - |
| Lens Shape | Dome | Dome | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Lens Dimensions | 1.9 mm | 1.9 mm | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | LED - Standard | LED - Standard | - |
| Factory Pack Quantity | 1000 | 5000 | - |
| Subcategory | LEDs | LEDs | - |
| Vr Reverse Voltage | 5 V | 5 V | - |
| Part # Aliases | 512-QTLP9127GR | 638-QTLP9127YR | - |