The Molex 1727670020 is a 20-circuit plug housing from the Mini-Fit TPA2 172767 series, designed for wire-to-board power interconnects in harness assemblies. The housing is panel-mount, snap-in style — no hardware needed for installation into a panel cutout.
What You Need to Know Before Ordering
Contacts are not included with this housing. You need to order the male crimp terminals separately — the Mini-Fit TPA2 terminal family (order codes like 172767-1 or equivalent) must be crimped onto your wire before insertion. The housing accepts the terminals and the secondary TPA (Terminal Position Assurance) retainer locks them in place, which is the feature that distinguishes the TPA2 series from standard Mini-Fit housings. The locking ramp fastening type means the plug stays mated under vibration without a secondary latch — you'll hear it click when fully seated.
Mating and Termination
This plug housing mates with any Mini-Fit TPA2 header that shares the 4.20 mm pitch and 20-circuit dual-row layout — typically the 172767 series headers with vertical or right-angle pin orientation. Termination is crimp-style: strip the wire, crimp the male pin terminal, insert it into the housing cavity until the locking tang engages. The secondary TPA retainer then slides over the terminal cavities to confirm full seating.