| PartNumber | BM20B(0.8)-40DS-0.4V(51) | BM20B(0.8)-40DS-0.4V(53) | BM20B(0.8)-40DP-0.4V(53) |
| Description | Board to Board & Mezzanine Connectors 40P DR RCP B2B/B2FPC 0.8mm H 0.4mm P VSMT | Board to Board & Mezzanine Connectors 40P DR RCP B2B/B2FPC 0.8mm H 0.4mm P VSMT | Board to Board & Mezzanine Connectors 40P DR HDR B2B/B2FPC 0.8mm H 0.4mm P VSMT |
| Manufacturer | - | Hirose Electric Co Ltd | - |
| Product Category | - | Rectangular - Board to Board Connectors - Arrays, Edge Type, Mezzanine | - |
| Series | - | BM20 | - |
| Packaging | - | Digi-ReelR Alternate Packaging | - |
| Mounting Type | - | Surface Mount | - |
| Features | - | Solder Retention | - |
| Height Above Board | - | 0.031" (0.80mm) | - |
| Connector Type | - | Receptacle, Center Strip Contacts | - |
| Contact Finish | - | Gold | - |
| Contact Finish Thickness | - | - | - |
| Number of Positions | - | 40 | - |
| Pitch | - | 0.016" (0.40mm) | - |
| Number of Rows | - | 2 | - |
| Mated Stacking Heights | - | 0.8mm | - |