Molex Mini-Fit Jr Series Straight Through Hole PCB Header 4 Contact 4.2 mm Pitch 2 Row Shrouded 39-31-0040

Molex 39-31-0040 Mini-Fit Jr Series Straight Through Hole PCB Header features 4 contacts arranged in 2 rows with a 4.2 mm pitch, ideal for high current wire-to-board connections in electronics. The shrouded design provides insulation and protection for the contacts, preventing debris and accidental damage. These PCB headers are robust and designed for applications requiring reliable electrical performance.

The connectors handle up to 9A per circuit and are constructed with a nylon housing, brass contacts plated with tin, ensuring long-lasting durability and corrosion resistance. The terminals are fully isolated and the scoop-proof housing prevents damage during mating at severe angles.

Key features include polarization and keying to avoid mismating and a positive locking mechanism that secures the connection against shock and vibration. An audible click feedback confirms complete engagement. Versions with snap-in PCB retention pegs and mounting flanges provide enhanced mechanical stability on PCBs.

This product is rated for 600V and operates safely between -40°C and 105°C, making it suitable for a range of industrial, office equipment, consumer white goods, industrial automation, networking, and server hardware applications.

These Mini-Fit Junior connectors offer design flexibility for high-density, high-current electronic systems. Mexico is the country of origin, attesting to quality manufacturing standards.

Handles up to 9A per circuit. Fully isolated terminals prevent arcing and debris ingress. Scoop-proof housing protects pins from damage. Polarization and keying prevent mismating. Positive locking mechanism ensures secure connection.

Audible click for mating confirmation. Available with PCB retention pegs and mounting flanges. Operating temperature range from -40°C to 105°C. Constructed with durable nylon housing, brass contacts, and tin plating. Rated for 600V applications.

Ideal for use in industrial automation, consumer electronics, networking equipment, and other electronic assembly applications requiring reliable power connectors. Explore the wide array of PCB Headers and Mini-Fit Jr connectors at EnvMart for trusted industrial components.