| PartNumber | 66951-004 | 66951-004LF | 66951-005LF |
| Description | Headers & Wire Housings CARD CONN 4 POS | Headers & Wire Housings VERT CARD CONN S/R 30AU | Headers & Wire Housings VERT CARD CONN S/R 30AU |
| Manufacturer | FCI / Amphenol | FCI / Amphenol | FCI / Amphenol |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Product | Headers | Headers | Headers |
| Type | Socket Assembly | Socket Assembly | Socket Assembly |
| Number of Positions | 4 Position | 4 Position | 5 Position |
| Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Number of Rows | 1 Row | 1 Row | 1 Row |
| Mounting Style | - | - | - |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Mounting Angle | Vertical | Vertical | Vertical |
| Contact Gender | Socket (Female) | Socket (Female) | Socket (Female) |
| Contact Plating | Gold | Gold | Gold |
| Series | Dubox | Dubox | Dubox |
| Tradename | DUBOX | DUBOX | DUBOX |
| Current Rating | 3 A | 3 A | 3 A |
| Housing Material | Thermoplastic | Thermoplastic | Thermoplastic |
| Voltage Rating | 1.25 kV | 1.25 kV | 1.25 kV |
| Brand | Amphenol FCI | Amphenol FCI | Amphenol FCI |
| Contact Material | Phosphor Bronze | Beryllium Copper | Phosphor Bronze |
| Compliance | UL, CSA | - | - |
| Latching Type | Unlatched | Unlatched | - |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 59 | 59 | 46 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| RoHS | - | Y | Y |
| Packaging | - | Tube | Tube |
| Part # Aliases | - | 66951004LF | 66951005LF |
| Flammability Rating | - | - | UL 94 V-0 |
| Insulation Resistance | - | - | 5000 MOhms |
| Maximum Operating Temperature | - | - | + 125 C |
| Minimum Operating Temperature | - | - | - 65 C |