| Part Number | 521781-1 | 521771-1 | 
|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | 
| Category | Terminals - Housings, Boots | Terminals - Housings, Boots | 
|   |   | |
| Product Status | Active | Active | 
| Style | Housing | Housing | 
| Terminal Type | Quick Connect, Disconnect | Quick Connect, Disconnect | 
| Gender | Female, Receptacle | Female, Receptacle | 
| Terminal Size | 0.187" (4.75mm), 0.250" (6.35mm) | 0.250" (6.35mm) | 
| Number of Positions | 4 | 2 | 
| Stacking Direction | Side to Side | Top to Bottom | 
| For Use With/Related Products | 0.187" (4.75mm) and 0.250" (6.35mmm) Quick Connects | 0.250" (6.35mm) Quick Connects | 
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | 
| Color | Natural | Natural |