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| Part Number | 66581-4 | 66591-4 | 66582-4 | 66589-4 | 66584-4 | 66581-7 | 66585-4 | 66580-4 | 66581-1 | 66581-2 |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Product Status | Active | Active | Active | Active | Active | Discontinued at Digi-Key | Obsolete | Active | Active | Active |
| Type | Stamped | Stamped | Stamped | Stamped | Stamped | Stamped | Stamped | Stamped | Stamped | Stamped |
| Pin or Socket | Pin | Pin | Socket | Pin | Socket | Pin | Pin | Socket | Pin | Pin |
| Contact Termination | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp | Crimp |
| Wire Gauge | 18-22 AWG | 18-22 AWG | 18-22 AWG | 16-18 AWG | 20-24 AWG | 18-22 AWG | 24-28 AWG | 16-18 AWG | 18-22 AWG | 18-22 AWG |
| Contact Material | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass |
| Contact Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Tin | Tin |
| Contact Finish Thickness | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | - | - |
