Molex Mini-Fit Jr 5566 series header, 0039310080, 8-position dual-row, 4.20mm pitch, shrouded 4-wall, male pin, through-hole solder, locking ramp, tin-plated contacts, UL94 V-0 natural PA66 housing.
| 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 | 8 |
| 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) |
With 8 positions loaded fully, the header carries signal or power circuits across two rows of four.
This reduces the risk of bent pins during blind mating in tight enclosures.
The mating contact finish is tin with a thickness of 35.4µin (0.90µm). The post finish is also tin at 35.0µin, matching the solderability requirements for through-hole wave soldering.
It is ROHS3 compliant.
The pitch is 0.165" (4.20mm) on both the mating interface and the row spacing.
Yes, the header includes a locking ramp that engages with the matching latch on the Mini-Fit Jr receptacle. This provides positive retention against vibration and cable strain.