Use this scr GA101 thyristor manufactured from Microsemi as a bistable switch in your circuit, and keep it on with a forward-biased voltage. This device has a surge current rating of 5 A. This SCR thyristor has an operating temperature range of -65 °C to 150 °C. Its repetitive peak forward blocking voltage is 60 V, while its repetitive peak reverse voltage is 60 V.