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Varistors for Surge and ESD Protection – SMD and Dipped MOV Solutions
TL;DR: Suntan varistors provide reliable surge suppression and ESD protection with both dipped MOV and SMD multilayer options for power lines and high-speed signal interfaces.
What Is a Varistor?
A varistor is a voltage-dependent resistor used to protect electronic circuits from surge voltage and transient overvoltage. It clamps high-energy spikes and diverts surge current away from sensitive components.
Varistor Product Overview
Suntan offers a full range of metal oxide varistors (MOV) including dipped radial types for power surge protection and multilayer SMD varistors for ESD protection in compact electronic designs.
Key Electrical Characteristics
- Fast response time for transient suppression
- High surge current handling capability
- Bi-directional voltage clamping
- Available in through-hole dipped and SMD packages
- Wide voltage range for power and signal protection
Dipped MOV vs SMD Multilayer Varistor
| Parameter | Dipped MOV | SMD Multilayer Varistor |
|---|---|---|
| Application | Power line surge protection | ESD protection for signal lines |
| Energy Handling | High | Moderate |
| Response Time | Fast | Very fast |
| PCB Size | Larger | Compact |
Typical Applications
- AC power supply surge protection
- Adapters and industrial power equipment
- USB, Ethernet, and RF interface ESD protection
- Consumer and telecommunications electronics
Selection Considerations for Surge Protection
When selecting a varistor for surge or ESD protection, engineers should evaluate varistor voltage, clamping voltage, surge current rating, capacitance, and package type to ensure optimal circuit protection.
Explore Suntan Varistor Solutions
View product details and electrical specifications:
Suntan Varistor Product Page
Product Overview Video
Watch the MOV and SMD varistor technology introduction:
Varistor Surge Protection Overview
Request Samples and RFQ
Looking for a varistor for AC surge suppression or ESD protection? Contact our engineering team for selection support, samples, and quotation.
Email:
info@suntan.com.hk /
sales@suntan.com.hk