Molex Mini-Fit Jr 5566 series, 0039289168, Board to Cable/Wire header, 16 circuits, dual-row, 4.20mm pitch, shrouded 4-wall, locking ramp, through-hole solder, gold mating contacts, 30µin, UL94 V-0, tray.
| Parameter | Value |
|---|---|
| Series | Mini-Fit Jr 5566 |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Locking Ramp |
| Contact material | Brass |
| Insulation color | Natural |
| Insulation height | 0.504\" (12.80mm) |
| Insulation material | Polyamide (PA66), Nylon 6/6 |
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Tray |
| Parameter | Value |
|---|---|
| Features | Board Lock |
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Applications | General Purpose, Industrial, Telecommunications |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.165\" (4.20mm) |
| Positions | 16 |
| Row spacing - mating | 0.165\" (4.20mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.138\" (3.50mm) |
| Contact finish - mating | Gold |
| Contact finish thickness - post | 100.0µin (2.54µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
The dual-row layout packs the circuits into a compact width, saving board real estate compared to a single-row equivalent.
Gold resists oxidation and fretting corrosion, so the contact resistance stays stable across hundreds of cycles.
The board lock feature adds extra shear-force retention during solder reflow and against cable strain after assembly.
It is ROHS3 compliant.
The Mini-Fit Jr 5566 series includes headers with different circuit counts and plating options. For a 16-position dual-row header, the key variables are contact finish (gold vs tin) and whether board locks are present.