| Part Number | LTL-4251 | LTL-4291 | 
|---|---|---|
| Manufacturer | Lite-On Inc. | Lite-On Inc. | 
| Category | LED Indication - Discrete | LED Indication - Discrete | 
|   |   | |
| Product Status | Active | Active | 
| Color | Yellow | Red | 
| Configuration | Standard | Standard | 
| Lens Color | Yellow | Orange | 
| Lens Transparency | Diffused | Diffused | 
| Millicandela Rating | 8.7mcd | 12.6mcd | 
| Lens Style | Round with Domed Top | Round with Domed Top | 
| Lens Size | 3mm, T-1 | 3mm, T-1 | 
| Voltage - Forward (Vf) (Typ) | 2.1V | 2V | 
| Current - Test | 10mA | 20mA | 
| Viewing Angle | 40° | 40° | 
| Mounting Type | Through Hole | Through Hole | 
| Wavelength - Dominant | 588nm | 621nm | 
| Wavelength - Peak | 585nm | 630nm | 
| Features | - | - | 
| Package / Case | Radial | Radial | 
| Supplier Device Package | T-1 | T-1 | 
| Size / Dimension | - | - | 
| Height (Max) | 6.55mm | 6.55mm |