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  2. Zero-ohm link - Wikipedia

    en.wikipedia.org/wiki/Zero-ohm_link

    Zero-ohm axial lead resistor Zero-ohm surface-mount resistor. A zero-ohm link or zero-ohm resistor is a wire link packaged in the same physical package format as a resistor.It is used to connect traces on a printed circuit board (PCB).

  3. Electronic flight instrument system - Wikipedia

    en.wikipedia.org/wiki/Electronic_flight...

    The electronic display technology of EFIS has no such restriction and uses color widely. For example, as an aircraft approaches the glide slope, a blue caption can indicate glide slope is armed, and capture might change the color to green. Typical EFIS systems color code the navigation needles to reflect the type of navigation.

  4. Pull-up resistor - Wikipedia

    en.wikipedia.org/wiki/Pull-up_resistor

    In electronic logic circuits, a pull-up resistor (PU) or pull-down resistor (PD) is a resistor used to ensure a known state for a signal. [1] It is typically used in combination with components such as switches and transistors , which physically interrupt the connection of subsequent components to ground or to V CC .

  5. Electronic circuit - Wikipedia

    en.wikipedia.org/wiki/Electronic_circuit

    [2] An electronic circuit can usually be categorized as an analog circuit, a digital circuit, or a mixed-signal circuit (a combination of analog circuits and digital circuits). The most widely used semiconductor device in electronic circuits is the MOSFET (metal–oxide–semiconductor field-effect transistor). [3]

  6. IP code - Wikipedia

    en.wikipedia.org/wiki/IP_Code

    IP65 touchscreen display IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against ...

  7. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    There are two types of these. One type consists of two dies connected to the same two leads antiparallel to each other. Current flow in one direction emits one color, and current in the opposite direction emits the other color. The other type consists of two dies with separate leads for both dies and another lead for common anode or cathode so ...

  8. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    While allowing UV light to reach the retina can lead to retinal damage, the short lifespan of mice compared with other mammals may minimize this disadvantage relative to the advantage of UV vision. [29] Dogs have two cone opsins at 429 nm and 555 nm, so see almost the entire visible spectrum of humans, despite being dichromatic. [30]

  9. Resistor ladder - Wikipedia

    en.wikipedia.org/wiki/Resistor_ladder

    Figure 2: 4-bit linear R–2R DAC using unequal resistors. It is not necessary that each "rung" of the R–2R ladder use the same resistor values. It is only necessary that the "2R" value matches the sum of the "R" value plus the Thévenin-equivalent resistance of the lower-significance rungs. Figure 2 shows a linear 4-bit DAC with unequal ...

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