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  2. Computer fan - Wikipedia

    en.wikipedia.org/wiki/Computer_fan

    Connectors usually used for computer fans are the following: Three-pin Molex connector KK family This Molex connector is used when connecting a fan to the motherboard or other circuit board. It is a small, thick, rectangular in-line female connector with two polarizing tabs on the outer-most edge of one long side.

  3. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    Separable assembly or sub-assembly (e.g. printed circuit assembly) AT: Attenuator or isolator: BR: Bridge rectifier (four diodes in a package) often changed to "D" for diode BT, BAT: Battery or battery holder: often shortened to "B" C: Capacitor: CB: Circuit breaker: CN: Capacitor network: may be simplified to "C" for capacitor D, CR: Diode ...

  4. Computer case screws - Wikipedia

    en.wikipedia.org/wiki/Computer_case_screws

    A regular computer case may require/include [5] 7 thumb screw 6-32 × 6 mm for 2.5” drive tray, expansion slots; 4 hexagon screw 6-32 × 6 mm for psu; 21 phillips screw 6-32 × 5 mm for motherboard, 3.5” harddisk tray; 12 phillips screw M3 × 5 mm for 2.5” harddrive; 16 KB5 x 10 mm for fans; 9 standoff 6-32 × 6.5 + 4 mm for motherboard

  5. JST connector - Wikipedia

    en.wikipedia.org/wiki/JST_connector

    End-users and 3rd-party sellers on eBay often describe connectors by their wrong name thus perpetuating confusion of the exact series of a specific connector. It is very common in blogs and websites to incorrectly name a specific connector only by the name of the manufacturer.

  6. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    This saves a homeowner a trip to the breaker panel, should the device trip. Unlike AFCI breakers, AFCI receptacles can be used on any wiring system, regardless of the panel. [citation needed] When installed as the first receptacle on a branch circuit, AFCI receptacles can provide series arc protection for the entire branch circuit. They also ...

  7. Robertson screw - Wikipedia

    en.wikipedia.org/wiki/Robertson_screw

    The internal-drive square socket for screws (as well as the corresponding triangular socket drive) had been conceived several decades before the invention of the Robertson screw and driver. An earlier patent covering both square-socket- and triangle-socket -drive wood screws, U.S. patent 161,390 , was issued to Allan Cummings of New York City ...