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| PartNumber | 54102-0408 | 54102-0404 0541020404 | 541020404 |
| Description | Board to Board & Mezzanine Connectors .5MM VERT REC 40CKT SMT DUAL ROW | CONN RCPT 40POS VERT .5MM SMD | |
| Manufacturer | Molex | - | - |
| Product Category | Board to Board & Mezzanine Connectors | - | - |
| RoHS | Y | - | - |
| Number of Positions | 40 Position | - | - |
| Pitch | 0.5 mm | - | - |
| Number of Rows | 2 Row | - | - |
| Termination Style | SMD/SMT | - | - |
| Mounting Angle | Vertical | - | - |
| Current Rating | 500 mA | - | - |
| Voltage Rating | 50 V | - | - |
| Series | 54102 | - | - |
| Contact Plating | Gold | - | - |
| Housing Material | Thermoplastic | - | - |
| Brand | Molex | - | - |
| Contact Material | Gold | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Product Type | Board to Board & Mezzanine Connectors | - | - |
| Factory Pack Quantity | 3000 | - | - |
| Subcategory | Board to Board & Mezzanine Connectors | - | - |
| Tradename | SlimStack | - | - |
| Part # Aliases | 0541020408 | - | - |
| Unit Weight | 0.005545 oz | - | - |