| 摘要 |
An arrangement for protecting an electrical circuit from a voltage transient comprises a threshold foldback switching element 8 that is connected, or arranged to be connected between a current-carrying line 2 of the circuit and earth (e.g. an earth pin 2' of a connector). A capacitor 5 having a capacitance of not more than 2 microfarads is connected in series with the threshold foldback switching element 8 and the current-carrying line 2, and is such that substantially the entire transient passes through the switching element and capacitor. |
