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Mill-Max has developed high-density, 0.050in-pitch, through-hole and surface-mount spring-loaded connectors (SLCs), which can be used as the internal battery connection in portable instruments.

The SLCs are available in single- and double-row strip packaging.

Each precision-machined spring-pin component is plated in hard gold and assembled in a high-temperature thermoplastic insulator suitable for wave and reflow soldering processes.

Every Mill-Max SLC is RoHS compliant.

The Series 854-22-0XX-10-001101 and 855-22-0XX-10-001101 through-hole insulators feature moulded standoffs to improve soldering and cleaning beneath the connector.

Tail diameters of 0.016in require minimal-diameter plated holes for connector mounting, maximising signal routing between pins.

The low-profile Series 854-22-0XX-30-001101 and 855-22-0XX-30-001101 surface-mount spring connectors stand less than 0.230in tall when engaged mid-stroke (0.0275in).

Each SMT spring pin features a base geometry of 0.030in round by 0.010in tall to maximise soldering surface area and to promote solder joint fillet.

Mill-Max also offers through-hole (Series 856-10-0XX-10-051000 and 857-10-0XX-10-051000) and surface-mount (Series 856-10-0XX-30-051000 and 857-10-0XX-30-051000) 0.050in-pitch target connectors.

These provide a gold-plated, flat and conductive mating surface for the 854/855 series.

The Series 856/857 devices are precision-machined and assembled into thermoplastic insulators.

They are RoHS compliant and suitable for reflow soldering.

Mill-Max SLCs are often used as the internal battery connection in portable instruments or as the external battery connection for charging these instruments (docking stations).

Another application is stacking printed circuit boards in an assembly.

Spring-pin connectors are said to be ideal for mezzanine-tiered board modules that require blind-mate assembly.

Mill-Max Manufacturing

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