Würth
Varistance (12 V CC) - Wurth 820541406
Varistance (12 V CC) - Wurth 820541406
Impossible de charger la disponibilité du service de retrait
Need help choosing or buying larger quantities? Ask an EMC engineer
We aim to reply within 24 hours of receiving your enquiry.
Product details
La varistance Würth 820541406 assure une protection contre les surtensions dans les équipements sensibles fonctionnant jusqu'à 12 V CC. Les varistances sont très utiles pour éviter les dommages dus à des événements à haute tension ou à des décharges électrostatiques en limitant la tension.
Caractéristiques
- La varistance fonctionne immédiatement après une surtension
- Temps de réponse < 25 ns
- Plage de température de fonctionnement de -45°C à +85°C
- Certifié UL1449
Pour plus d'informations, veuillez consulter la fiche technique .
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.