FCI Dubox board-to-board receptacle, order code 71991-439LF, 78 positions, dual row, 0.100" (2.54mm) pitch, 11.04mm mated stack height, through-hole solder termination, tin-plated mating contacts, UL94 V-0.
| Parameter | Value |
|---|---|
| Series | Dubox™ |
| Gender | Female Socket |
| Mounting type | Through Hole |
| Connector type | Receptacle, Bottom or Top Entry |
| Fastening type | Push-Pull |
| Contact material | Phosphor Bronze |
| Insulation color | Blue |
| Insulation height | 0.275\" (6.99mm) |
| Insulation material | Thermoplastic, Glass Filled |
| Mated stacking heights | 11.04mm |
| Material flammability rating | UL94 V-0 |
| Style | Board to Board |
| Package | Tube |
| Termination | Solder |
| Applications | Automotive, General Purpose, Industrial, Telecommunications |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 78 |
| Row spacing - mating | 0.100\" (2.54mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.118\" (3.00mm) |
| Contact finish - mating | Tin |
| Contact finish thickness - post | 78.7µin (2.00µm) |
| Contact finish thickness - mating | 78.7µin (2.00µm) |
The 71991-439LF is the 78-position member of FCI's Dubox board-to-board receptacle line, designed for parallel board stacking at an 11.04mm mated height. It uses a dual-row 0.100" (2.54mm) pitch layout with tin-plated mating contacts and through-hole solder termination, rated UL94 V-0 for the thermoplastic housing.
The specified mated stacking height is 11.04mm when paired with the matching Dubox header. This height is set by the receptacle insulation height of 0.275" (6.99mm) plus the header profile.
RoHS and REACH compliance documentation is provided with the shipment; contact the supplier for specific certificates.