| PartNumber | 1-1977477-1 | 1-1977477-0 | 1-1977477-2 |
| Description | Barrier Terminal Blocks DUAL 11 POS .325 BLK | Barrier Terminal Blocks DUAL 10 POS .325 BLK | Barrier Terminal Blocks DUAL 12 POS .325 BLK |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| RoHS | Y | Y | Y |
| Product | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| Type | Wire-to-Board | Wire-to-Board | Wire-to-Board |
| Series | 4DB | 4DB | 4DB |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Product Type | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| Factory Pack Quantity | 100 | 100 | 100 |
| Subcategory | Terminal Blocks | Terminal Blocks | Terminal Blocks |
| Part # Aliases | 1-1977477-1 | 1-1977477-0 | 1-1977477-2 |