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| PartNumber | TLLR4401-AS12 | TLLR4401-AS12Z | TLLR4401 |
| Description | LED Uni-Color Red 635nm 2-Pin T-1 T/R (Alt: TLLR4401-AS12) | LED Uni-Color Red 635nm 2-Pin T-1 T/R | Standard LEDs - Through Hole LC Red Tint Diffused |
| Manufacturer | - | - | Vishay Semiconductor Opto Division |
| Product Category | - | - | LED Indication - Discrete |
| Color | - | - | Red |
| Series | - | - | - |
| Packaging | - | - | Bulk |
| Mounting Style | - | - | Through Hole |
| Package Case | - | - | T-1 |
| Mounting Type | - | - | Through Hole |
| Features | - | - | - |
| Size Dimension | - | - | - |
| Supplier Device Package | - | - | 3mm |
| Viewing Angle | - | - | 50° |
| Voltage Forward Vf Typ | - | - | 1.9V |
| Current Test | - | - | 2mA |
| Millicandela Rating | - | - | 2mcd |
| Wavelength Peak | - | - | 635nm |
| Lens Style Size | - | - | Round with Domed Top, 3.20mm |
| Lens Color | - | - | - |
| Lens Transparency | - | - | Diffused |
| Wavelength Dominant | - | - | 619nm |
| Height Max | - | - | 6.10mm |
| Maximum Operating Temperature | - | - | + 100 C |
| Minimum Operating Temperature | - | - | - 40 C |
| Vf Forward Voltage | - | - | 1.9 V |
| Illumination Color | - | - | Red |
| LED Size | - | - | T-1 (3 mm) |
| If Forward Current | - | - | 2 mA |
| Wavelength Color Temperature | - | - | 618.5 nm |
| Lens Shape | - | - | Dome |
| Luminous Intensity | - | - | 2 mcd |
| Lens Color Style | - | - | Tinted Diffused |
| Lens Dimensions | - | - | 2.9 mm x 2.9 mm x 3.5 mm |