Würth
Varistor (48V DC) - Wurth 820475001
Varistor (48V DC) - Wurth 820475001
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Product details
Würth varistor 820475001 provides overvoltage protection in sensitive equipment operating up to 48V DC. Varistors are very useful for preventing damage due to high voltage events or electrostatic discharge by clamping the voltage.
Features
- Varistor works immediately after surge impulse
- Response time <25ns
- -45°C to +85°C operating temperature range
- UL1449 certified
For more information please see the datasheet.
Questions about this product
How does a varistor help with a transient?
How does a varistor help with a transient?
A varistor becomes more conductive as the voltage rises, diverting transient current and limiting the voltage across it. Select its voltage, surge and energy ratings for the actual circuit.
Can a varistor be used more than once?
Can a varistor be used more than once?
A suitably rated varistor can handle repeated transients within its specified limits, but surges and sustained overvoltage can degrade or damage it. Follow the manufacturer’s ratings and protective recommendations.
Where should I connect a varistor?
Where should I connect a varistor?
Choose its position as part of the complete protection design, commonly across the conductors being protected. Mains-to-earth applications need particular attention to component suitability and the equipment’s safety requirements.
Can you help with larger quantities or product selection?
Can you help with larger quantities or product selection?
Yes. Contact us with the product, quantity and intended application. We can discuss suitability and prepare a quotation for your requirements.