This is an 8-position, 2-row header in the Mini-Fit Jr 5566 family. The 4.20mm pitch is consistent across the series, so the footprint and mating interface are shared with other position counts — but the 8-position variant is a sweet spot for moderate power distribution (e.g., a 24V DC supply rail with four circuits per polarity) without the bulk of a 12- or 16-position header. Compared to a 10-position sibling, this 8-position part saves two board positions and the corresponding receptacle cavities — a meaningful difference when the harness layout is tight.
Molex 0039299086 Mini-Fit Jr Header 8 Pos 4.2mm
MPN0039299086
Active
Molex Mini-Fit Jr 5566 series, 0039299086, Board to Cable/Wire header, 8 positions, 2 rows, 0.165" (4.20mm) pitch, Through Hole, Solder termination, Tin mating finish, Locking Ramp, UL94 V-0.
$2.0700Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMini-Fit Jr 5566
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026
Specifications
| 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 |
All specifications
| 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 | 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) |
Product details
Frequently asked questions
What is the mating connector for 0039299086?
The mating half is a Mini-Fit Jr receptacle housing (e.g., Molex 39-01-2085 or similar 8-position, 2-row receptacle) that accepts the matching crimp terminals.