The TMOV14R275EPX2662 is a metal oxide varistor (MOV) from Littelfuse, designed to protect sensitive electronic equipment from transient voltage surges. These surges can originate from various sources, including lightning strikes, power line disturbances, and electrostatic discharge (ESD). This particular MOV is part of the TMOV series, known for its robust construction and reliable performance in demanding environments.

Applications

• Power supplies: Protection against voltage surges in AC/DC power supplies.
• Surge protective devices (SPDs): Incorporation into surge arresters and other SPDs.
• Industrial equipment: Safeguarding industrial control systems and machinery.
• Consumer electronics: Protecting appliances and other electronic devices from voltage transients.
• Telecom equipment: Protecting sensitive communication lines and equipment.

Features

• High surge current capability: Capable of withstanding high surge currents without failure. Specifically designed to handle peak surge currents.
• Fast response time: Reacts quickly to transient voltage events, clamping the voltage before damage can occur.
• RoHS compliant: Meets Restriction of Hazardous Substances (RoHS) directive standards.
• Agency approvals: Typically UL recognized and compliant with other relevant safety standards (check datasheet for specific certifications).
• Operating Temperature Range: Wide operating temperature to insure function in a variety of harsh enviroments.

Benefits

• Enhanced equipment protection: Provides reliable protection against voltage surges, extending the lifespan of electronic equipment.
• Reduced downtime: Minimizes equipment failures and downtime caused by voltage transients.
• Improved system reliability: Contributes to the overall reliability of electronic systems.
• Cost savings: Reduces the costs associated with equipment repair and replacement.
• Compliance: Facilitates compliance with safety standards and regulations.

Additional Details

The TMOV14R275EPX2662 has a varistor voltage (V_VRMS) of 275V. This voltage represents the point at which the MOV starts to conduct significantly. The '14' in the product name refers to the diameter of the varistor element in millimeters. The energy absorption capability of the MOV is a critical parameter and should be considered when selecting a suitable varistor for a particular application. Refer to the Littelfuse datasheet for the precise energy rating, surge current rating, clamping voltage, and other relevant specifications.

Metal oxide varistors are non-linear resistors that exhibit high resistance at normal operating voltages. When a transient voltage exceeds the varistor voltage, the resistance drops dramatically, allowing the MOV to shunt the surge current away from sensitive components. After the surge subsides, the MOV returns to its high-resistance state.