The B72220S511K101V87 is a varistor manufactured by EPCOS (TDK). Varistors are voltage-dependent resistors, also known as transient voltage suppressors (TVS). They are designed to protect electronic circuits from overvoltage transients, such as those caused by lightning, inductive load switching, or electrostatic discharge (ESD).

Applications

• Surge protection in power supplies
• Transient voltage suppression in industrial electronics
• Protection of sensitive electronic components in telecommunications equipment
• Overvoltage protection in consumer electronics
• Automotive electronics

Features

• High surge current capability: Designed to withstand high surge currents without failure.
• Fast response time: Reacts quickly to transient voltage surges, clamping the voltage to a safe level.
• Wide operating voltage range: Suitable for use in a variety of circuits with different voltage requirements.
• Compact size: Allows for easy integration into electronic circuits.
• RoHS compliant: Complies with the Restriction of Hazardous Substances Directive, making it environmentally friendly.
• UL, CSA, VDE approvals: Meets safety standards.

Benefits

• Protects sensitive electronic components from damage: Prevents costly repairs and downtime.
• Improves the reliability of electronic equipment: Ensures stable and reliable operation even in harsh environments.
• Extends the lifespan of electronic devices: Protects against premature failure caused by overvoltage transients.
• Enhances safety: Reduces the risk of electrical hazards.
• Cost-effective surge protection solution: Provides reliable protection at a reasonable cost.

Additional Details

The B72220S series varistors are typically ceramic disc varistors. The 'S' in the part number usually indicates a leaded disc varistor. Key specifications include the maximum surge current (e.g., 8/20 μs pulse), the varistor voltage (voltage at which the varistor starts to conduct significantly), and the maximum clamping voltage (the maximum voltage that the varistor will allow to pass through). Consult the specific datasheet for the B72220S511K101V87 to confirm these parameters. The K101 portion often signifies a varistor voltage of 510V. The V87 often relates to packaging and lead style.