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The diac, short for diode alternating current, is a two-terminal device that symmetrical switches On and Off when the applied voltage exceeds its breakover voltage threshold. It functions as a trigger device that can transition power between the positive and negative half cycles of alternating current. With this capability, diacs find extensive usage in a variety of electronic circuits.
| Mobile | Marketing Status | Configuration | VRRM(V) max. | IF(A) max. | VF (V) max | IFSM(A) max. | IR(uA) max. | trr (ns) max | TJ(°C) max. | TJ(°C) min. | ECCN(US) | Compliance | |
| DB3 | Active | 125 | -55 | EAR99 | | ||||||||
| DB3 (G) | not for new design | 125 | -40 | EAR99 | |||||||||
| DB3M | not for new design | 125 | -40 | EAR99 | |||||||||
| DB3S | Active | 125 | -55 | EAR99 | | ||||||||
| DB4 | Active | 125 | -55 | EAR99 | | ||||||||
| DB4 (G) | not for new design | 125 | -40 | EAR99 | |||||||||
| DB4M | not for new design | 125 | -40 | EAR99 | |||||||||
| DB4S | Active | 125 | -55 | EAR99 | | ||||||||
| SODDB3 | Active | 125 | -40 | EAR99 | | ||||||||
| SODDB3T | Active | 125 | -40 | EAR99 | |
1. AC Power Control: Triacs are extensively used in applications involving the regulation of power levels, including heating devices, motor controllers, and light dimmers. The ability to control current throughout the AC cycle enhances efficiency and flexibility.
2. AC Switching: Triacs excel in applications that require switching AC loads like motors, heaters, and solenoids. These devices provide reliable and efficient performance, ensuring seamless operation.
3. Phase Control: Triacs offer precise phase control, allowing for optimal energy management in devices such as heating elements and lighting systems.
The diac, short for diode alternating current, is a two-terminal device that symmetrical switches On and Off when the applied voltage exceeds its breakover voltage threshold. It functions as a trigger device that can transition power between the positive and negative half cycles of alternating current. With this capability, diacs find extensive usage in a variety of electronic circuits.
