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| PartNumber | 3421-G020 | 3421-G000 | 3421-G600 |
| Description | Headers & Wire Housings 20/SKT/PRASB/OP/CA. REC.ODD RW/SR/30AVG | Headers & Wire Housings 20/SKT/PRA SB/OP CA.REC.ODD RW/30AVG | Headers & Wire Housings 20/SKT/PRA SB/OP/CB CA.REC.ODD RW/30AVG |
| Manufacturer | 3M | - | 3M |
| Product Category | Headers & Wire Housings | - | Rectangular Connectors - Free Hanging, Panel Mount |
| Brand | 3M Electronic Solutions Division | - | - |
| Product Type | Headers & Wire Housings | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | Headers & Wire Housings | - | - |
| Part # Aliases | 05400781827 80610563035 | - | - |
| Unit Weight | 4 lbs | - | - |
| Color | - | - | Black |
| Series | - | - | 3000 |
| Packaging | - | - | Bulk |
| Mounting Type | - | - | Free Hanging (In-Line) |
| Features | - | - | Feed Through, Polarizing Key |
| Connector Type | - | - | Receptacle |
| Contact Finish | - | - | Gold |
| Wire Gauge | - | - | 26-28 AWG, Stranded or Solid |
| Contact Finish Thickness | - | - | 30μin (0.76μm) |
| Number of Positions | - | - | 20 |
| Pitch | - | - | 0.100" (2.54mm) |
| Number of Rows | - | - | 2 |
| Contact Type | - | - | Female Socket |
| Row Spacing | - | - | 0.100" (2.54mm) |
| Fastening Type | - | - | - |
| Cable Termination | - | - | IDC |
| Wire Type | - | - | Ribbon Cable |