Molex Mini-Fit Jr 5566 series, 0039299183, Board to Cable/Wire header, 18 circuits, 4.20mm pitch, dual-row, through-hole, tin-plated male pins, shrouded with board lock.
| 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-2 |
| 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 | 18 |
| Row spacing - mating | 0.165\" (4.20mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.138\" (3.50mm) |
| Contact finish - mating | Tin |
| Contact finish thickness - post | 35.0µin (0.90µm) |
| Contact finish thickness - mating | 35.4µin (0.90µm) |
The 0039299183: This is a Molex Mini-Fit Jr 5566 series header, 18 positions arranged in two rows at 4.20mm pitch — the standard spacing for medium-current wire-to-board interconnects in industrial and telecom gear.
The insulation height of 0.504" (12.80mm) gives clearance for the locking mechanism and allows the receptacle to seat fully without interference from nearby components.
We source this part through independent distribution channels. Submit an RFQ with your target quantity; we confirm availability and current pricing at quote time. No stock-holding claim — quoted per order.
Yes — this header mates with standard Mini-Fit Jr receptacle housings (e.g., 5557 series) using the matching crimp terminals. The 4.20mm pitch and locking ramp are common across the series.