TVS - Varistors, MOVs

In the field of automotive and industrial electronics, 0070.5081.B1 is a commonly used component for the prevention of ESD transients, surges and overloads. It is a Varistor/Metal Oxide Varitator (V/MOV) device, providing superior and reliable protection against high currents and/or voltages. This device usually comes in a 4-pin stainless passivated steelTO-220 package with a cathode, anode, and two equivalent pins placed opposite each other along a center line of the package.

This device works by employing an oxide/dielectric composite material that has resistivity in relation to its physical size and temperature. When a voltage or current exceeding the rated working voltage is applied, the resistance of this dielectric material decreases causing the device to absorb the excess energy without the device entering into a conductive state. In simpler terms, it is an electrical device that acts like a cushion, absorbing sudden changes in voltage and current without creating any spark, heat, or explosion.

The main benefit of using 0070.5081.B1 is that it can safely absorb up to 10 times more energy than conventional varistors, making it suitable for high-surge, high-temperature applications such as EMI filters, motor and welding equipment. It also has a fast response and will switch back to its normal state almost immediately after the event, thereby reducing the risk of any damage to the sensitive components. In addition, its broad operational temperature range of -55°C to + 145°C (−67°F to +293°F) is ideal for extreme operating conditions, and its low capacitance of 85 pF/V enables it to provide highest level of EMI suppression, allowing it to be used in numerous applications requiring maximum protection.

The 0070.5081.B1 is not only used in automobiles, but also in industrial equipment, motion control systems, and in demanding commercial products such as UPS systems, where reliable protection against voltage spikes is required. Furthermore, it is suitable for both AC and DC electrical applications, and is versatile enough to be used in various configurations such as series, parallel, and mixed configurations.

The 0070.5081.B1 is a dependable high-energy V/MOV device which ensures steady and reliable operation in the most demanding applications. Its superior energy-absorption characteristics, wide operational temperature range, and fast response provide users with the utmost protection from power surges, EMI, and high-voltage transients.