Molex Mini-Fit Jr 5566 series, 0039296128, Board to Cable/Wire header, 12 positions, 2 rows, 4.20mm pitch, shrouded, locking ramp, through-hole solder, gold mating contact.
| 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 | Bulk |
| Parameter | Value |
|---|---|
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Applications | General Purpose, Industrial, Telecommunications |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.165\" (4.20mm) |
| Positions | 12 |
| 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) |
Insulation color is natural (off-white).
This header mates with Mini-Fit Jr receptacle housings (e.g., series 5557) using the corresponding crimp terminals. The 0.504" (12.80mm) insulation height and 0.138" (3.50mm) post length set the board-to-mating-half clearance. Row spacing is the same 0.165" (4.20mm) as the pitch, so the footprint is a 2×6 grid.
This secures the connection against vibration and accidental unmating.
The 0039296128 mates with Mini-Fit Jr receptacle housings (typically the 5557 series) that accept crimp terminals. Confirm the circuit count and row configuration match the 12-position, 2-row layout.