| PartNumber | HSMS-C660 | HSMS-C680 |
| Description | Standard LEDs - SMD Red Diffused 639nm 5mcd | Standard LEDs - SMD Hi-Eff Red |
| Manufacturer | Broadcom Limited | Broadcom Limited |
| Product Category | Standard LEDs - SMD | Standard LEDs - SMD |
| RoHS | Y | Y |
| Product | Red LEDs | Red LEDs |
| Package / Case | 1208 (3020 metric) | Side Looker |
| Orientation | Top View | Side View |
| Illumination Color | Red | Red |
| Wavelength/Color Temperature | 626 nm | 621 nm |
| Luminous Intensity | 5 mcd | 5.1 mcd |
| Viewing Angle | 155 deg | 125 deg |
| Lens Color/Style | Untinted Non-Diffused | Untinted Non-Diffused |
| If Forward Current | 20 mA | 20 mA |
| Vf Forward Voltage | 1.9 V | 2 V |
| Power Rating | 65 mW | 65 mW |
| Length | 3 mm | 3 mm |
| Height | 1 mm | 1 mm |
| Width | 2 mm | 2 mm |
| Minimum Operating Temperature | - 30 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C |
| Packaging | Reel | Reel |
| Brand | Broadcom / Avago | Broadcom / Avago |
| Lens Shape | Dome | Dome |
| Mounting Style | SMD/SMT | SMD/SMT |
| Peak Wavelength | 639 nm | 636 nm |
| Lens Dimensions | 2 mm x 1 mm | 2 mm x 1 mm |
| Moisture Sensitive | Yes | Yes |
| Product Type | LED - Standard | LED - Standard |
| Factory Pack Quantity | 3000 | 3000 |
| Subcategory | LEDs | LEDs |
| Vr Reverse Voltage | 5 V | 5 V |