| Part Number | 643428-1 | 643423-1 |
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| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Category | Rectangular Connectors - Headers, Receptacles, Female Sockets | Rectangular Connectors - Headers, Receptacles, Female Sockets |
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| Product Status | Active | Active |
| Connector Type | Header | Header |
| Contact Type | Female Socket | Female Socket |
| Style | Board to Cable/Wire | Board to Cable/Wire |
| Number of Positions | 12 | 6 |
| Number of Positions Loaded | All | All |
| Pitch - Mating | 0.250" (6.35mm) | 0.250" (6.35mm) |
| Number of Rows | 3 | 3 |
| Row Spacing - Mating | 0.250" (6.35mm) | 0.250" (6.35mm) |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Fastening Type | Locking Ramp | Locking Ramp |
| Contact Finish - Mating | Tin | Tin |
| Contact Finish Thickness - Mating | - | - |
| Insulation Color | White | Natural |
| Insulation Height | 0.580" (14.73mm) | 0.580" (14.73mm) |
| Contact Length - Post | 0.155" (3.94mm) | 0.155" (3.94mm) |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-2 |
| Contact Finish - Post | Tin | Tin |
| Mated Stacking Heights | - | - |
| Ingress Protection | - | - |
| Features | Board Guide | Board Guide |
| Current Rating (Amps) | - | - |
| Voltage Rating | - | - |