双向可控硅(TRIAC, TRI-ELECTRODE AC SWITCH)为三极交流开关，亦称为双向晶闸管或双向可控硅。 TRIAC为三端元件，其三端分别为T1 (第二端子或第二阳极)，T 2(第一端子或第一阳极)和G(控制极)亦为一闸极控制开关，与SCR最大的不同点在于TRIAC无论于正向或反向电压时皆可导通。
| 型号 | 品牌 | IT(RMS)_Max /A | ITSM_Max @ f = 50Hz/A | VDRM_Min/V | IGT_I_Max/mA | IGT_II_Max/mA | IGT_III_Max/mA | TJ_Max /°C | 封装 |
|---|---|---|---|---|---|---|---|---|---|
| JST12X-1000CW | JJM | 12 | 130 | 1000 | 35 | 35 | 35 | 125 | TO-220F |
| JST12X-1100CW | JJM | 12 | 130 | 1100 | 35 | 35 | 35 | 125 | TO-220F |
| JST12X-1200CW | JJM | 12 | 120 | 1200 | 35 | 35 | 35 | 125 | TO-220F |
| JST12X-800CW | JJM | 12 | 130 | 800 | 35 | 35 | 35 | 125 | TO-220F |
| JST130N2-600D | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-89-2L |
| JST130N2-600T | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-89-2L |
| JST130N2-800D | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-89-2L |
| JST130N2-800T | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-89-2L |
| JST130U-600D | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | TO-92 |
| JST130U-600T | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | TO-92 |
| JST130U-800D | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | TO-92 |
| JST130V-600D | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-223 |
| JST130V-600T | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-223 |
| JST130V-800D | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-223 |
| JST130V-800T | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-223 |
| JST130W-600D | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-223-2L |
| JST130W-600T | JJM | 0.8 | 10 | 600 | 5 | 5 | 5 | 125 | SOT-223-2L |
| JST130W-800D | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-223-2L |
| JST130W-800T | JJM | 0.8 | 10 | 800 | 5 | 5 | 5 | 125 | SOT-223-2L |
| JST131N2-600D | JJM | 1 | 16.5 | 600 | 5 | 5 | 5 | 125 | SOT-89-2L |