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| Part Number | 573UYD/S530-A3 | 57-21/Y2C-AQ2S1B/BF | 57-21/GHC-AT1U2M/BF | 57-21SYGC/S530-E3/TR8 | 57-21/T2C-FV2W1M/BF |
| Manufacturer | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd |
| Series | - | - | - | - | - |
| Package/Case | Radial | 2-SMD, Boomerang | 2-SMD, Boomerang | 2-SMD, Boomerang | - |
| Packaging | Bulk | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Bulk |
| Product Status | Active | Active | Active | Active | Active |
| Color | Yellow | Yellow | Green | Yellow-Green | - |
| Configuration | Standard | Standard | Standard | - | - |
| Lens Color | Yellow | Colorless | Colorless | Colorless | - |
| Lens Transparency | Diffused | Clear | Clear | Clear | - |
| Millicandela Rating | 16mcd | 158mcd | 500mcd | 51mcd | - |
| Lens Style | Rectangle with Flat Top | Round with Flat Top | Round with Flat Top | Round with Flat Top | - |
| Lens Size | 7.10mm x 2.40mm | 2.20mm Dia | 2.20mm Dia | - | - |
| Voltage - Forward (Vf) (Typ) | 2V | 2.05V | 3.35V | 2V | - |
| Current - Test | 20mA | 20mA | 20mA | 20mA | - |
| Viewing Angle | 180° | 120° | 120° | 120° | - |
| Mounting Type | Through Hole | Surface Mount, Right Angle | Surface Mount, Right Angle | Surface Mount, Right Angle | - |
| Wavelength - Dominant | 589nm | 590nm | 527nm | 573nm | - |
| Wavelength - Peak | 591nm | 591nm | 518nm | 575nm | - |
| Features | - | - | - | - | - |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
| Supplier Device Package | Rectangular | SMD | Side View LED | SMD | - |
| Size / Dimension | - | 4.00mm L x 3.60mm W | 4.00mm L x 3.60mm W | 4.00mm L x 3.55mm W | - |
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