1.5SMC47AHR7G

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Transient Voltage Suppressors (TVSs) are a type of diode mostly used to protect sensitive electronic components from high voltage transients. The 1.5SMC47AHR7G is a special type of TVS diode that is specifically designed to protect against energy pulses from transient voltage overshoots, reverse transients, and electrostatic discharges (ESD).

1. Working Principle

The 1.5SMC47AHR7G TVS diode is a bi-directional, transient suppressor diode. It is specifically designed to offer protection from energy pulses created by transient voltage overshoots, reverse transients, or ESDs. It has a breakdown voltage of 37V, a clamping voltage of 57V, and a peak pulse power of 600W. The 1.5SMC47AHR7G is effectively a zener diode designed to suppress transients generated by high voltage electrical disturbances.

The diode acts as a current regulator by allowing current to flow when the voltage is below its breakdown voltage, then clamping current to a safe level when the voltage exceeds the breakdown voltage. The diode is non-linear, meaning that the current-voltage relation changes with the voltage level. At low voltages, the diode has a high resistance, limiting the amount of current that can pass through. When the voltage increases, the resistance decreases resulting in higher currents.

2. Application Field

The 1.5SMC47AHR7G TVS diode is a very useful device for protecting sensitive electronics from ESDs, voltage transients, and reverse transients. It is ideal for applications such as motor controllers, TV tuners, power supplies, audio amplifiers, and even automotive applications such as antilock brakes. The 1.5SMC47AHR7G provides a robust protection for electronics from high voltage transients and ESDs.

It is also important to note that the 1.5SMC47AHR7G comes in a surface mount form factor. This makes it ideal for small, tightly packed electronics applications such as cellphone circuit boards. The small size also makes it easier to incorporate into existing circuit designs without having to make large design changes.

3. Conclusion

The 1.5SMC47AHR7G TVS diode is an excellent choice for protecting sensitive electronics against ESDs and high voltage transients. It has a low breakdown voltage, a clamping voltage of 57V, and a peak pulse power of 600W. It is also available in a convenient surface mount form factor, making it ideal for applications with tight packaging requirements. The 1.5SMC47AHR7G is an excellent choice for protecting electronics against transient voltage overshoots, reverse transients, and electrostatic discharges.

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