Products/Services for Telephone Varistor

  • Varistors-Image
    Varistors - (172 companies)
    Varistors are voltage-clamping devices that can absorb current without damage. They are typically used in surge protection devices. Varistors are nonlinear two-electrode semiconductor voltage-dependant resistors. The current in a varistor... Search by Specification | Learn More
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    Board Mount Surge Suppressors - (18 companies)
    Technologies. Selecting surge suppressors requires an understanding of surge protector technologies. Choices include metal oxide varistors (MOVs), gas tubes, silicon avalanche diodes, silicon thyristor diodes, and hybrid technologies. MOVs have... Search by Specification | Learn More
  • Surge Suppressors-Image
    Surge Suppressors - (821 companies)
    Varistor. Metal oxide varistors (MOV) are variable resistance devices situated between a surge suppressor's ground wire and hot wire. When normal voltage is applied, MOVs exhibit very high resistance, allowing the current to continue through the hot... Search by Specification | Learn More
  • Circuit Protection Devices-Image
    Circuit Protection Devices - (259 companies)
    Silicon carbide varistors are designed for high-power, high-voltage surge arrester application. However, their low impedance values require a series gap to block the normal voltage. Silicon avalanche diodes are often used in low-voltage applications... Search by Specification | Learn More
  • Telephone Components and Accessories-Image
    Telephone Components and Accessories - (547 companies)
    Telephone Components and Accessories Information. Telephone components and telephone accessories are used in telephone systems. There are many different types available when considering a telephone component or phone accessory. Examples of telephone... Learn More
  • Metal Oxide Varistors (MOVs) - (75 companies)
    Unlike transient voltage suppression (TVS) diodes, however, metal oxide varistors degrade as they absorb repeated transients. Specifications. Performance specifications for metal oxide varistors (MOV) include: Maximum working voltage. Varistor... Search by Specification | Learn More
  • Telecommunications Services Providers - (538 companies)
    Telecommunications Services Providers (TSP) Information. Telecommunications services providers (TSP) include local telephone companies, local exchange carriers, and wireless communications services. They allow users of landlines and cell phones... Learn More
  • Magnetic Receivers - (5 companies)
    Magnetic receivers use the electromagnetic principle to receive and analyze signals. The simplest of these devices is the telephone. Magnetic receivers use the electromagnetic principle to receive and analyze signals. An electromagnetic principle... Learn More
  • VoIP Software - (56 companies)
    VoIP Software Information. VoIP software is used to conduct telephone-like voice conversations across IP-based networks. Voice over IP (VoIP) systems use Internet Protocol (IP) signaling, a general term for a group of telephony technologies... Learn More
  • Network Test Equipment - (309 companies)
    Network test equipment is used to test, probe, and analyze telecommunication, network and telephone systems. Network Test Equipment Information. Network test equipment is used to test, probe, and analyze telecommunication, network, and telephone... Search by Specification | Learn More
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CPE is defined as any telephone terminal equipment which resides at the customer's site and is connected to the Public Switched Telephone Network (PSTN). Telephones, modems, caller ID adjunct boxes, PBXs, and answering machines are all considered CPE. CPE should be protected against overvoltages...

Nature of lightning strike damage: “…many types of electronic circuits can be damaged or. destroyed when exposed to an excess current or an excess voltage produced by that current. If lightning strikes on or near overhead electric power or telephone line, a large current will be. injected...

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