Specification of TVS diode

Specification of TVS diode

TVS diode is a protective electronic component that can protect electrical equipment from voltage spikes introduced by wires.

What are the specifications of TVS diode?

Leakage current: The current that can be conducted when the voltage is less than the maximum reverse turn off voltage.

Maximum reverse shut-off voltage: Below this voltage, the diversion current is not significant

Breakdown voltage: The voltage at which a significant conduction current will occur.

Clamping voltage: The voltage at which the conducting current will reach its rated current (hundreds to thousands of amperes).

Stray capacitance: Unconductive diodes have characteristics similar to capacitors and have destructive effects on high-frequency signals. It is generally recommended to choose TVS diode with lower stray voltage.

Stray inductance: Due to the fast switching of actual overvoltage, the packaging inductance is one of the limiting factors for reaction speed.

Absorbable energy: Due to the short transient, all energy becomes the heat of the TVS diode itself. The heat sink only affects the time required for subsequent heat dissipation, and cannot improve the energy that the TVS diode can absorb. Therefore, high-energy TVS diode also have a larger volume. If the volume is not large enough, overvoltage may damage the TVS diode, which cannot protect other circuits.