GDT GDT

详情

Gas discharge tubes, including diodes and transistors, the voltage range from *5V****0V. Discharge tubes commonly used in the first level of the multi-stage protection circuit or the first two levels, lightning transient over-current from the discharge and to limit over-voltage, whenthe applied voltage increases to more than the gas dielectric strength, the gap between the poles of discharge breakdown, from the insulating state into a conductive state, the discharge tube between the poles of the voltage is maintained at the decision to put the arc Road residual conductionpressure level Discharge tubes is commonly used in the first level of the multi-the stage protection circuit or the first two levels, the discharge from the lightning the transient over-current and limit over-voltage when the applied voltage is increased to exceed the dielectric strength. of the gas, the gap between the poles of discharge breakdown, from the insulating state into a conductive state, and turn-on voltage is maintained in the discharge tube between the poles of the level of residual pressure in the release of Arc Road. .

Advantages: insulation resistance, the parasitic capacitance is very small. Advantages: insulation resistance, the parasitic capacitance is very small.

Disadvantages: is that the discharge delay (ie response time) is large, the movement sensitivity is not ideal, difficult to effectively suppress the increase of the steepness of the lightning wave wave head. Disadvantages: is that the discharge delay (ie response time) is large, the movement sensitivity is not ideal, difficult to effectively suppress the increase of the steepness of the lightning wave wave head.