Molex Mini-Fit Jr Series Straight Through Hole PCB Header 24 Contacts 4.2 mm Pitch 2 Row Shrouded 39-28-8240

Molex 39-28-8240 Mini-Fit Jr Series Straight Through Hole PCB Header features 24 male contacts arranged in 2 rows with 4.2 mm pitch. This connector is engineered for high reliability in demanding electronic applications with a continuous current rating of 6A per circuit and voltage rating of 600V.

The housing is made from durable nylon material providing high mechanical strength and insulation, with a UL94V-0 or UL94V-2 flame rating available in the series. Contacts are brass plated with tin to resist corrosion and ensure consistent electrical connection. The through-hole mounting design offers solid PCB attachment.

Terminated by soldering, this wire-to-board connector features fully isolated terminals to protect against debris and arcing, as well as scoop-proof housings to avoid damage to pins during mating, even at severe angles. Polarization and keying prevent improper assembly, while a positive locking mechanism with an audible click ensures secure mating and retention against shock and vibration.

This Mini-Fit Jr PCB header series is ideal for use in high current, high density wire-to-wire and wire-to-board interconnections in a variety of industries including consumer white goods, industrial automation, networking equipment such as routers and switches, rack-mount servers, and office equipment.

Available versions include models with snap-in plastic PCB retention pegs or mounting flanges for enhanced mechanical stability. The product is designed and manufactured in China under Molex quality standards.

Rated 6A current per contact for high current applications. Nylon housing provides robust insulation and mechanical protection. Tinned brass contacts ensure reliable electrical connection. Wire-to-board, through-hole mount for secure PCB fastening.

Fully isolated terminals and scoop-proof housings prevent damage and ensure safety. Polarization and keying prevent mismating issues. Positive locking mechanism with audible click confirms secure mating. Suitable for harsh environments with operating temperature from -40°C to 105°C.

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