The S07K420E2 is a varistor from EPCOS (TDK), designed to protect sensitive electronic equipment against voltage surges. It is part of the S series of varistors, known for their compact size and reliable performance in transient voltage suppression applications. This specific model has a disk diameter of 7mm.

Applications:

• Power supplies
• Consumer electronics
• Industrial equipment
• Telecommunication systems
• LED lighting

Features:

• Compact size (7mm disk diameter)
• High surge current capability
• Fast response time
• RoHS compliant
• UL recognized

Benefits:

• Provides reliable protection against voltage surges and transients, preventing damage to sensitive electronic components.
• Extends the lifespan of electronic equipment by mitigating the effects of overvoltage events.
• Enhances the overall reliability and safety of electronic systems.
• Easy to integrate into existing circuit designs.
• Meets international safety standards.

Additional Details:

The S07K420E2 varistor has a maximum allowable voltage of 420V. It is designed to handle surge currents up to a specified level, ensuring robust protection against transient events. Varistors are voltage-dependent resistors that exhibit a highly nonlinear current-voltage characteristic. When the voltage across the varistor exceeds its clamping voltage, the resistance of the varistor rapidly decreases, diverting the surge current away from the protected components. This helps to prevent damage caused by overvoltage conditions. The 'E2' indicates an epoxy coating. For detailed technical specifications, refer to the official EPCOS (TDK) datasheet.