Interconnection


New SMT pins utilise a grooved pattern design

30 May 2022 Interconnection

Mill-Max has expanded its range of SMT pins with the introduction of three new series which feature the Sure-Hold grooved pattern design. Each pin has channels machined into the SMT base providing excellent solder flow, thereby ensuring a secure soldered connection.

The new surface-mount pins are nail-head in style, having two diameters, the base and the post. Machined into the base of each pin are four channels or grooves. These channels fill with solder paste when placed on the PCB pad, and during the reflow process the grooves promote efficient capillary action, yielding optimal solder flow. This, in turn, secures the pin to the pad in the correct position and discourages ’pin float‘ often found with flat-bottom pins. The result is more consistent pin positioning and perpendicularity which is critical for discrete pins.

The pins are available in three diameters: 1,02 mm, 1,52 mm and 2,03 mm. Each pin has a base diameter 1,52 mm larger than the pin diameter, providing stable support during placement and soldering operations. Standard available plating options are pure tin or gold, each with nickel under-plating.

These terminals are suitable for many uses where surface-mount connections are the only option, such as I/O and power connections. They are also ideal for board-to-board interconnects, either as low-profile or a tall stack to clear other components.


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