Multilayer Varistor (VDR) for Transient Voltage Suppression

Component Overview

Varistors, also known as Voltage Dependent Resistors (VDR), are nonlinear components used for transient voltage suppression.
They provide overvoltage protection by clamping surge or ESD energy when the applied voltage exceeds a defined threshold.

Electrical Characteristics

• Working voltage range: 3.3V – 68V
• Operating temperature: -55°C to +125°C
• Low leakage current
• RoHS compliant

Structural Features

• Low firing technology
• Silver diffusion structure
• Grain resistance characteristics
• Stable electrical properties

Package Sizes

• 0402
• 0603
• 0805
• 1206
• 1210
• 1812
• 2220

Applications

• Transient voltage suppression in signal lines
• Low-voltage circuit protection
• Consumer electronics
• Industrial electronic systems

Design Considerations

• Select working voltage based on system operating voltage
• Consider package size according to PCB layout constraints
• Verify leakage characteristics in low-power applications
• Place close to protected lines for effective surge suppression

Product Reference

Varistor product information:
Varistor Series

Contact

For technical inquiries and quotation requests, please contact:
sales@suntan.com.hk |
info@suntan.com.hk