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| PartNumber | QTLP651C2TR | QTLP651C3TR | QTLP651C3TR/FC11-21UYC/S |
| Description | Standard LEDs - SMD 1206 W/LENS HER | Standard LEDs - SMD 1206 W/LENS YLW | |
| Manufacturer | ON Semiconductor | Everlight | - |
| Product Category | Standard LEDs - SMD | Standard LEDs - SMD | - |
| RoHS | Y | Y | - |
| Product | Red LEDs | Yellow LEDs | - |
| Package / Case | 1206 (3216 metric) | 1206 (3216 metric) | - |
| Orientation | Top View | Top View | - |
| Illumination Color | Red | Yellow | - |
| Wavelength/Color Temperature | 630 nm | 590 nm | - |
| Luminous Intensity | 15 mcd | 18 mcd | - |
| Viewing Angle | 20 deg | 20 deg | - |
| Lens Color/Style | Water Clear | Water Clear | - |
| If Forward Current | 20 mA | 20 mA | - |
| Vf Forward Voltage | 2 V | 2 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Bulk | Reel | - |
| Brand | ON Semiconductor / Fairchild | Everlight | - |
| Lens Shape | Rectangular | Rectangular | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Peak Wavelength | 635 nm | 585 nm | - |
| Product Type | LED - Standard | LED - Standard | - |
| Factory Pack Quantity | 10000 | 2000 | - |
| Subcategory | LEDs | LEDs | - |
| Part # Aliases | 638-QTLP651C2 | 512-QTLP651C3 | - |
| Moisture Sensitive | - | Yes | - |