Varistors - Shop Online for Circuit Protection Products | Ubuy Pakistan

Explore A Wide Range of Varistors in Pakistan

Varistors are essential circuit protection products commonly used in the industrial electrical sector. They provide defense against voltage surges and spikes by rapidly clamping to high transient voltages and diverting excessive current away from sensitive electronic components. This makes varistors crucial for safeguarding electronic devices from damage and malfunction.

Working Principle of Varistors

Varistors are made of semiconducting ceramic materials with non-linear voltage-current characteristics. When a low voltage is applied, these materials have a high resistance, but as the voltage increases, their resistance drops significantly. This behavior allows varistors to conduct high currents when exposed to transient voltage events, protecting the connected circuitry.

Advantages of Varistors

• Voltage Spike Suppression: Varistors efficiently absorb and dissipate voltage spikes, preventing them from damaging sensitive electronic components.

• Fast Response Time: Varistors have a rapid clamping response time, ensuring that transient voltage surges are quickly diverted away from the circuit.
• Wide Voltage Range: With various voltage ratings available, varistors can be selected to match the specific needs of different electrical applications.
• Compact Size: Varistors come in small sizes, making them suitable for space-constrained installations.
• Cost-Effective: Varistors offer a cost-effective solution for circuit protection compared to other alternatives.

Applications of Varistors

Varistors are widely used in a range of industrial and scientific applications, including:

• Power Distribution Systems
• Telecommunications Equipment
• Medical Devices
• Automobile Electronics
• Industrial Controls
• Consumer Electronics
• Lighting Systems
• Renewable Energy Systems

These versatile devices play a crucial role in protecting electronic equipment and ensuring their reliable operation even in the face of voltage fluctuations and surges.

Quality Varistor Brands

Brand A, Brand B, Brand C, Brand D, Brand E

These well-known brands in the industry have a reputation for manufacturing high-quality varistors that provide reliable circuit protection.

Choosing the Right Varistor

When selecting a varistor for a specific application, several factors should be considered:

• Voltage Rating: The varistor's maximum voltage rating should exceed the expected voltage spikes in the system.
• Energy Absorption: The varistor should have sufficient energy absorption capability to handle the expected surge energy.
• Response Time: A fast response time ensures that transient voltages are efficiently diverted away from the circuit.
• Operating Temperature Range: Varistors should be suitable for the operating temperature range of the application.
• Package Type: Consider the size and mounting options of the varistor to ensure compatibility with the system's design.

Frequently Asked Questions About Varistors