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2. NKK switches - Wikipedia

   en.wikipedia.org/wiki/NKK_switches

   NKK SWITCHES Co., Ltd. (NKKスイッチズ株式会社, NKK Suitchizu Kabushiki-gaisha) (formerly Nihon Kaiheiki Kogyo Co., Ltd.) is a designer and manufacturer of diversified industrial operational switches. The company offers illuminated, process sealed, miniature, specialty, surface mount and LCD programmable switches.

3. Switch - Wikipedia

   en.wikipedia.org/wiki/Switch

   In a switch where the contacts remain in one state unless actuated, such as a push-button switch, the contacts can either be normally open (abbreviated "n.o." or "no") until closed by operation of the switch, or normally closed ("n.c." or "nc") [nb 1] and opened by the switch action.

4. DIP switch - Wikipedia

   en.wikipedia.org/wiki/DIP_switch

   Single in-line SIP switches are also available, which only have one row of pins instead of the two rows of pins in DIP packages. This saves on pins and space. One of the pins is a common. With the popularization of surface-mount technology, these switches are now commonly available in non-DIP surface-mount package types. They are, however ...

5. Dual in-line package - Wikipedia

   en.wikipedia.org/wiki/Dual_in-line_package

   Because some modern chips are available only in surface-mount package types, a number of companies sell various prototyping adapters to allow those surface-mount devices (SMD) to be used like DIP devices with through-hole breadboards and soldered prototyping boards (such as stripboard and perfboard). (SMT can pose quite a problem, at least an ...

6. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   In Australia and New Zealand, a small rocker switch is almost universally used, in the form of a 16 mm (0.63 in) switch mechanism, which is mounted from behind into a wall-plate—attaching via mounting lugs, as shown in the photo on the left.

7. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Surface-mount technology (SMT), originally called planar mounting, [1] is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). [2] An electrical component mounted in this manner is referred to as a surface-mount device ( SMD ).