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| PartNumber | QTLP660CRTR | QTLP660CIRTR | QTLP660CIR |
| Description | Standard LEDs - SMD 1.8mm Red SMT TNR | Infrared Emitters DOME LENS INFRARED EMITTER T-R | |
| Manufacturer | Everlight | ON Semiconductor | Fairchild Semiconductor |
| Product Category | Standard LEDs - SMD | Infrared Emitters | Infrared, UV, Visible Emitters |
| RoHS | Y | Y | - |
| Product | Red LEDs | - | - |
| Package / Case | 1210 (3224 metric) | - | - |
| Orientation | Top View | - | Top View |
| Illumination Color | Red | Infrared | - |
| Wavelength/Color Temperature | 624 nm | - | - |
| Luminous Intensity | 400 mcd | - | - |
| Viewing Angle | 30 deg | - | 30° |
| Lens Color/Style | Water Clear | - | - |
| If Forward Current | 20 mA | - | - |
| Vf Forward Voltage | 2 V | - | - |
| Length | 3.2 mm | - | - |
| Width | 2.4 mm | - | - |
| Packaging | Reel | Reel | Tape & Reel (TR) |
| Brand | Everlight | ON Semiconductor / Fairchild | - |
| Lens Shape | Dome | - | - |
| Mounting Style | SMD/SMT | - | - |
| Peak Wavelength | 630 nm | - | - |
| Lens Dimensions | 1.8 mm | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | LED - Standard | IR Emitters (IR LEDs) | - |
| Factory Pack Quantity | 2000 | 2000 | - |
| Subcategory | LEDs | Infrared Data Communications | - |
| Part # Aliases | 512-QTLP660CRTR | - | - |
| Series | - | QTLP660CIR | - |
| Unit Weight | - | 0.003445 oz | - |
| Type | - | - | IR |
| Package Case | - | - | 2-PLCC |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Mounting Type | - | - | Surface Mount |
| Current DC Forward If Max | - | - | 65mA |
| Wavelength | - | - | 940nm |
| Voltage Forward Vf Typ | - | - | 1.2V |
| Radiant Intensity Ie Min If | - | - | 1mW/sr @ 20mA |