The ZNRV10820U is a transient/surge voltage suppressor from Panasonic's ZNR® V series. It's designed to protect electronic equipment from voltage surges caused by events like lightning strikes, inductive load switching, and electrostatic discharge (ESD).

Applications

• Power Supplies: Used for surge protection in AC/DC and DC/DC power supplies.
• Consumer Electronics: Integrated into televisions, audio equipment, and appliances to safeguard against power surges.
• Industrial Equipment: Protects sensitive components in industrial control systems and automation equipment.
• Telecommunications Equipment: Used in networking devices, telephone exchanges, and base stations for surge protection.
• LED Lighting: Protects LED drivers and luminaires from voltage spikes.

Features

• High Surge Current Capability: Can withstand high surge currents without degradation.
• Fast Response Time: Quickly clamps transient voltages.
• Excellent Clamping Characteristics: Effectively limits the voltage to a safe level.
• RoHS Compliant: Meets environmental regulations.
• Compact Size: Allows for easy integration into various circuit designs.

Benefits

• Protection against Voltage Surges: Prevents damage to sensitive electronic components.
• Increased Product Reliability: Extends the lifespan of electronic equipment.
• Reduced Downtime: Minimizes equipment downtime due to surge-related failures.
• Improved Safety: Protects users from electrical hazards.
• Cost-Effective Solution: Provides a reliable and affordable means of surge protection.

Technical Specifications

The ZNRV10820U has a varistor voltage of approximately 820V. The maximum surge current rating is a critical parameter and depends on the surge waveform and number of applied surges. Refer to the official Panasonic datasheet for specific values. The clamping voltage determines the maximum voltage that the protected circuit will be exposed to during a surge event. The varistor is typically supplied in a disc-shaped package with radial leads for convenient PCB mounting. The energy absorption capability determines how much energy it can absorb before failing.

Always consult the official Panasonic datasheet for detailed specifications, surge current ratings, derating curves, and safety precautions before using the ZNRV10820U in any application.