Gold Contact Grade and Mating Cycle Life
The 91601-304LF: The mating contact finish is 30.0 µinch (0.76 µm) gold over phosphor bronze — a thickness that supports 500+ mating cycles in typical board-to-board applications.

Amphenol ICC (FCI) Dubox™ 91601-304LF, 4-position single-row surface-mount receptacle, 0.100" (2.54mm) pitch, gold-over-phosphor bronze contacts, UL94 V-0 gray thermoplastic housing.
| Parameter | Value |
|---|---|
| Series | Dubox™ |
| Gender | Female Socket |
| Mounting type | Surface Mount |
| Connector type | Receptacle, Bottom or Top Entry |
| Fastening type | Push-Pull |
| Contact material | Phosphor Bronze |
| Insulation color | Gray |
| Insulation height | 0.275\" (6.99mm) |
| Insulation material | Thermoplastic, Glass Filled |
| Mated stacking heights | 10.81mm |
| Material flammability rating | UL94 V-0 |
| Style | Board to Board |
| Package | Bulk |
| Termination | Solder |
| Applications | Automotive, General Purpose, Industrial, Telecommunications |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 4 |
| Contact finish - post | Tin |
| Contact finish - mating | Gold |
| Contact finish thickness - post | 78.7µin (2.00µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
The 91601-304LF: The mating contact finish is 30.0 µinch (0.76 µm) gold over phosphor bronze — a thickness that supports 500+ mating cycles in typical board-to-board applications.
Yes, the 91601-304LF is RoHS compliant per the manufacturer's listing.