Molex Mini-Fit Jr Series Straight Through Hole PCB Header 12 Contacts 4.2 mm Pitch 2 Row Shrouded 39-28-8120

Molex 39-28-8120 Mini-Fit Jr Series Straight Through Hole PCB Header is a high-performance connector with 12 contacts arranged in 2 rows spaced at 4.2 mm pitch. It is designed for wire-to-board applications requiring reliable power and signal transmission up to 6A per circuit and 600V voltage tolerance.

The connector housing is fabricated from durable nylon material that meets high safety and insulation standards. The brass contacts are plated with tin and are fully isolated within the scoop-proof, shrouded housing to safeguard terminals from mechanical damage and debris. This design also prevents contact bending when mated improperly.

This product features polarization and keying to eliminate mismating risks. The positive locking mechanism ensures secure connection stability even under vibration or shock, with an audible click confirming full seating.

Rated for operation in harsh temperature environments ranging from -40°C to 105°C, it supports through-hole mounting with solder termination for robust PCB attachment. Versions with additional retention features like snap-in plastic pegs and mounting flanges are available.

The Mini-Fit Junior series connectors are widely used in applications such as consumer white goods, industrial automation equipment, office devices, industrial networking, and computing equipment like rack-mount servers, routers, and switches.

Supports up to 6A current per contact, ideal for power applications. Nylon housing provides durability and electrical insulation. Brass contacts with tin plating ensure reliable connectivity. Features a positive locking mechanism and audible click for secure mating.

Fully isolated terminals protect against debris and damage. Connector incorporates polarization and keying to prevent mismating. Operates reliably between -40°C and 105°C temperature range. Designed for through-hole mounting with solder termination.

Compact 4.2 mm pitch and 2-row arrangement optimizes PCB space. Suitable for industrial, consumer electronics, and automation applications.

Choose Molex Mini-Fit Jr Series PCB Headers for dependable, high-current wire-to-board connections in demanding industrial, laboratory, and commercial electronic equipment. Explore more quality connectors and electronic components on EnvMart.