V3.5MLA0603WH

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The V3.5MLA0603WH is a 40V 3.5mm radial-leaded varistor. It is designed to protect circuits from transient voltage spikes and reduces the longitudinal voltage drop. This varistor is suitable for consumer, as well as industrial and automotive electronic equipment.

Application field

The V3.5MLA0603WH varistor is designed to protect circuits from transients that could cause stress on sensitive components. It is suitable for use in a variety of applications, including:

• AC adapter protection
• Retrofitting existing AC adapters
• Power supply protection
• Protection of communications and audio equipment
• Automotive ECU protection
• Home appliance protection
• Lighting equipment protection

Working principle

When a transient voltage spike is detected, the V3.5MLA0603WH varistor acts like a switch to reduce the voltage drop across the varistor, thereby protecting the circuit from further damage. The varistor will only conduct current when the voltage spike exceeds the specified breakdown voltage and the current is within the rated varistor surge current.

When the transient voltage spike begins to exceed the breakdown voltage of the varistor, the current increases, reducing the voltage across the varistor. This in turn reduces the voltage drop across the varistor and reduces the longitudinal voltage drop, protecting the circuit from further damage. The current and voltage will eventually stabilize to a safe level, allowing the circuit to return to normal operation.

Once the transient voltage spike passes, the varistor will quickly return to its original state and the voltage across the varistor will return to a safe level. This allows the circuit to continue working properly with no further damage.

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