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  • Zener Diode Tutorial
    The basic parameters of a zener diode are:
  • Select the Right Varistors for Overvoltage Circuit Protection
    Varistors, also called metal-oxide varistors (MOVs), are used to protect sensitive circuits from a variety of overvoltage conditions. Essentially, these voltage-dependent, nonlinear devices have electrical characteristics similar to back-to- back Zener diodes.
  • | Electronics Industry News for EEs & Engineering Managers
    Heard on the Beat (Nov. 2) Heard on the Beat (Nov. 2) Semiconductor Alert! (Oct. 29-Nov. 2) Commentary & analysis of week's chip news, Oct. 29-Nov. 2 Diodes develops high-precision zener diode process technology WESTLAKE VILLAGE, Calif. -- Diodes Inc. here announced the development
  • Littelfuse Varistors - Basic Properties, Terminology and Theory (.pdf)
    Varistors are voltage dependent, nonlinear devices which have an electrical behavior similar to back-to-back zener diodes. The symmetrical, sharp breakdown characteristics shown in Figure 1 enable the varistor to provide excellent transient suppression performance. When exposed to high voltage
  • Trimming The Output Voltage Of DC/DC Converters
    /A) or OPAM, must be used for adjustment, the circuit in Figure 2 can be used. The circuit in Figure 1 is a variable current source that can be used to perform a ±10% adjustment of the converter's output voltage. The auxiliary output is preloaded by RLF and an overvoltage zener diode to prevent any
  • DC/DC Converters In Power Sequencing Systems
    and the optocoupler. When Vin is applied while the on/off pin is open, the zener diode Z1, which is biased through R9, holds the base of Q1 at VZ.

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