The Mini-Fit Junior PCB headers from Molex, part of the Mini-Fit Junior power connector system, offer several key features. They are designed for high-current applications, with a capacity of up to 9A per circuit. These headers have isolated terminals to protect against debris, arcing, and mishandling damage.

The connector housings are scoop-proof, preventing damage to the pin terminals during mating at severe angles. They also feature polarization and keying to ensure correct alignment and prevent mismating. A positive locking mechanism secures the connection and prevents accidental disconnection due to shock or vibration, signified by an audible click upon full mating.

For PCB connections, options include versions with snap-in plastic PCB peg locks and PCB mounting flanges. These headers come in UL94V-0 or UL94V-2 housing materials, offering various contact configurations and plating options for versatility and reliability.