The application principle of  1.5SMC400A  and the protection function of unidirectional tvs in the circuit

1. One-way tvs(Transient Voltage Suppressor, transient voltage suppressor) is a diode device that allows the current to flow freely in one direction, and has a very high impedance in the reverse, so as to prevent the reverse current from causing damage to the circuit. 1.5SMC400A This unidirectional tvs can be switched on at forward voltage, while at reverse voltage it effectively blocks the current and protects the circuit from damage.

2. Specific parameters of 1.5SMC400A : The product has a cut-off voltage of 342V and a peak pulse current capacity of 2.8A. These parameters indicate that when the voltage in the circuit exceeds 342V, the unidirectional tvs will start, protecting the circuit from damage by limiting the voltage and absorbing excessive current. This ability is particularly important for protecting sensitive electronic devices from voltage spikes and overvoltages.

3. Application Scenario: 1.5SMC400A is suitable for electronic devices that require voltage protection, especially at the power input, signal lines, and any part of the circuit that may be subject to voltage transients. By effectively absorbing excessive voltage and current, unidirectional tvs helps protect circuits from damage, ensuring stable operation and extended service life of equipment.

The application principle of 1.5SMC400A is mainly through the working principle of one-way tvs, which plays the role of over-voltage and over-current protection in the circuit to ensure the safe operation of electronic equipment.