0070.4021.A2

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TVS diodes, also known as transient voltage suppression diodes, act as a protectant for electrical circuits. They offer protection from voltage spikes, ESD, and lightning strikes. The 0070.4021.A2 is part of a series of transil TVS from STMicroelectronics. Its application field and working principle are described in detail below.

Application field

TVS diodes, like the 0070.4021.A2, are designed specifically for use in automotive systems. They can protect circuits from high ESD events (up to 15 kV) as well as prevent damage from voltage transients up to 1000W. The 0070.4021.A2 can be used in both 12 and 24V systems and is compatible with IEC 61000-4-2 level 4 tests. The device can also be used in a variety of other applications, such as consumer and industrial electronics.

Working principle

The 0070.4021.A2 is a two-terminal device that provides protection from transients and ESD. It works by absorbing the energy of a transient and dissipating it as heat. The device will also shunt the excess current away from vulnerable components. When a transient occurs, the device will clamp the voltage at a safe level, thus protecting the circuit from any damage.

When ESD strikes, the device absorbs the energy and instantly dissipates it as heat. This prevents the ESD from reaching the sensitive components in the circuit. The device is also designed to operate over an extended temperature range of -60°C to + 175°C.

Conclusion

The 0070.4021.A2 is an ideal device for protecting automotive circuits from transients and ESD. It can safely shunt the excess energy away from vulnerable components and dissipate it as heat. Its two-terminal design makes it easy to integrate into existing circuits. It is also designed to operate over a wide temperature range. Overall, the 0070.4021.A2 is an excellent choice for automotive circuit protection.

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