Board-to-Board Header for Prototyping and Production
The Amphenol 86837-140H is a 40-position, dual-row, unshrouded male pin header from the BERGSTIK® II series. It's a board-to-board interconnect, designed to mate with a corresponding female socket or receptacle on a separate PCB. The 0.100" (2.54mm) pitch is a staple for breadboard prototyping, legacy designs, and general-purpose digital or analog signal routing. Rated at 5A per contact and 110V, it handles moderate power distribution across the board interface. The 30.0µin gold plating on the mating surface ensures reliable connections over repeated mating cycles, making it suitable for applications where the board stack is occasionally separated for service or rework.
Key Specs and What They Mean for Your Fit
The 40 positions are fully loaded across two rows, which means the board footprint requires a 2x40 through-hole layout at the standard 0.100" pitch. The unshrouded design gives you access to the pins for probing or manual wiring, but offers no keying or polarization — so pin-one orientation must be verified against the mating receptacle during assembly. The 0.380" (9.65mm) mating length provides a solid engagement depth for a stable connection. The UL94 V-0 rated black insulation housing is standard for equipment inside an enclosure where flame retardancy is required. The 5A per-contact rating is per the spec; derate current above ambient temperature per the manufacturer's derating curve in the product drawing.