Mill-Max has added a through-hole version of 2-mm pitch spring-loaded connectors to complement the series’ surface mount version. As always, real estate is at a premium in electronic packaging with designers demanding tighter pitch interconnects that deliver high quality performance. These spring-loaded connectors (SLC’s) are an appealing option combining both durability and space saving qualities. For board-to-board or device-to-board connections with the additional security of through-hole mounting, these 2-mm spring-loaded connectors are a practical solution.
The connectors feature spring pins with a working travel of 0.0275 in. (0.7 mm) and a maximum travel of 0.055 in. (1.4 mm). The initial, uncompressed, height of the connectors from the board surface is 0.295 in. (7.5 mm). Mill-Max also offers standard 2-mm pitch mating target connectors in through-hole and surface mount varieties, each with the option of a flat or concave face. When mated with through-hole target connectors, at mid-stroke, a board to board height of 0.425 in. (10.8 mm) is achieved; 0.408 in. (10.35 mm) with the SMT targets. The connectors feature a solder tail diameter of 0.022 in. (0.56 mm) and a plunger diameter of 0.032 in. (0.81 mm) allowing adequate space for laying out the PCB holes, pads and traces on both the solder and mating sides of the connectors.
These new through-hole SLC’s are offered in single row, series 836-22-0XX-10-001101 and double row, series 838-22-0XX-10-001101. Standard availability is 2 to 50 positions for single row and 4 to 100 positions for the double row. Both series are designed for manual placement into Ø .030±.003 in. plated through-holes in the circuit board prior to hand, wave or reflow soldering.
The new 2mm pitch spring-loaded connectors maintain the quality and reliability of current Mill-Max spring pin connectors by utilizing the same precision-machined components and internal spring components. Gold-plated components and springs ensure the highest conductivity, corrosion resistance and durability. The spring-loaded pins used in these connectors have a current rating of 2 amps continuous use (3 A maximum.) The high temperature plastic housing is suitable for all soldering processes and the connectors are RoHS compliant.
Mill-Max Mfg. Corp.