71991-328
71991-328, Dubox™ 56-Position Board-to-Board Receptacle
MPN71991-328
Obsolete
71991-328, Dubox™ Series, 56-position, dual-row 0.100" (2.54mm) pitch board-to-board receptacle, female socket, phosphor bronze contacts, gold-plated mating interface (0.76µm), tin-plated solder tails (2.00µm), through-hole solder termination, UL94 V-0, mated stack height 11.04mm.
$1.7859Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Dubox™ |
| Type | Female Socket |
| Mounting | 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 |
All specifications
| Parameter | Value |
|---|---|
| Package | Tube |
| Termination | Solder |
| Applications | Automotive, General Purpose, Industrial, Telecommunications |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 56 |
| Row spacing - mating | 0.100\" (2.54mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.118\" (3.00mm) |
| Contact finish - mating | Gold |
| Contact finish thickness - post | 78.7µin (2.00µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
Frequently asked questions
What is the closest pin-compatible alternative to the 71991-328?
No official cross-reference or successor order code appears in the current record. Any substitute must match the 56-position dual-row count, 0.100" (2.54mm) pitch, and through-hole footprint of this receptacle to qualify as a form-fit-function replacement.