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  • Transient Suppression Devices & Principles (.pdf)
    There are two major categories of transient suppressors: a) those that attenuate transients, thus preventing their propagation into the sensitive circuit; and b) those that divert transients away from sensitive loads and so limit the residual voltages. Attenuating a transient, that is, keeping
  • AC Line Voltage Transients and Their Suppression (.pdf)
    . Transients in an electrical circuit result from the sudden release of previously stored energy. The severity of, and hence the damage caused by transients depends on their frequency of occurrence, the peak transient currents and voltages present and their waveshapes.
  • | Electronics Industry News for EEs & Engineering Managers
    workers worldwide MELVILLE, N.Y.--General Semiconductor Inc. today announced plans to close its manufacturing plant in Macroom, Ireland, which produces transient voltage suppression diodes and rectifiers, in response to weak economic conditions and the unprecedented downturn in electronics markets
  • 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
  • The ABCs of Littelfuse Multilayer Suppressors (.pdf)
    components. They are offered in different designs to accommodate different suppression requirements. For an initial determination of which type is suitable, it is desirable to know: 1. The working voltage or maximum system voltage. 2. The type of transient that is to be suppressed and its energy level. 3
  • Considerations for Selecting Littelfuse MOVs and Fuses for Industrial Motor Applications (.pdf)
    include medium and heavy motors. Transient over-voltage suppression in these applications typically require Industrial Metal Oxide Varistors (MOVs) for induced lightning surges or for switching transients created by the motor itself.These situations demand that the MOV ratings match the surges found
  • Littelfuse Varistor Design Examples (.pdf)
    shown in Figure 1b to be used on residential 117VAC lines. A representative transient generator is to be used for testing as shown in Figure 1a. If the transient is applied to the existing circuit, the rectifier will receive high negative voltages, transmitted through the filter capacitor. The LC
  • Lightning Transients
    into the common earth paths of the earthing system of the installation. The ideal transient suppression device would be an open circuit at normal voltages, would conduct without delay at some slight voltage above normal, would not allow the voltage to increase during the clamping period, would handle

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