2P4M SCR Thyristor 400V 2A the transistor
- SCR Type: Single
- Voltage Rated: 400V
- Current Rating: 2A
- IGT: 200uA
- An SCR is a solid-state switching device that can provide fast, infinitely variable proportional control of electric power. Unlike a mechanical relay or contactor, an SCR Power Controller has no mechanical parts to wear out. The SCR will not arc or be effected by dirty contacts. A mechanical relay will have to be replaced after a certain number of cycles. Due to the slow cycle time inherent in mechanical relays, control can be poor so the heated process may be damaged and heater life could be shortened due to thermal shock.