B72540E0140K062 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS - Varistors, MOVs are mainly used in electric and electronic equipment to protect them from over-voltage transient surge, high-frequency electromagnetic interference, and even from lightning strikes. The B72540E0140K062 is a varistor that resists the passage of current under normal operating conditions, but changes its resistance in the presence of over-voltage transients. It is typically used to protect circuits against transient over-voltages and flashes of lightning.

The B72540E0140K062 varistor can be used in a wide variety of applications, ranging from communication systems to industrial equipment. It is especially popular in automotive applications, such as anti-theft systems, alarm systems, and immobilizers. It can also be used in power supplies and inverters, medical equipment, consumer electronics, and other systems.

Working principle: A varistor is a nonlinear resistor whose resistance depends on the voltage applied across the terminals. When the voltage across the terminals is below the varistor\'s breakdown voltage, the device does not conduct current and the resistance appears to be infinite. As the voltage across the terminals increases, the device\'s resistance falls in a manner dependent upon the varistor material, size, and construction. The exact characteristics of the varistor depend on the construction and characteristics of the underlying material.

Once the voltage across the varistor exceeds its break-down voltage, the current starts to increase exponentially, typically forming a clamped or limited voltage waveform. This means that as the voltage of the transient event increases, the current through the varistor increases exponentially until the current reaches the maximum that the varistor can handle, after which the current flow is limited, and the voltage across the terminals is capped. This prevents further damage to the protected device.

The B72540E0140K062 varistor is designed for operation between -55℃ and +125℃ with a maximum stand-off voltage of 500V and a maximum breakdown voltage of 900V. The device has a rated clamping voltage of 1080V with a peak pulse current rating of 130A. The B72540E0140K062 has a very fast response time of 20ns, making it ideal for protecting sensitive electronic components from transient over-voltage events.

In summary, the B72540E0140K062 is a varistor designed for use in a wide range of applications, from communication systems to automotive systems. It is capable of protecting circuits from over-voltage transients and lightning strikes with a very fast response time. The device has a wide operating temperature range and a high-voltage rating, making it well suited for use in many different environments.

The specific data is subject to PDF, and the above content is for reference