固态继电器利用光电效应而动作的继电器。它是由发光元件和光敏器件构成的。当加在发光元件上的信号达到某一定值时，光的作用使光敏器件的阻值发生急剧变化，从而起到闭合或开断电路的作用。
| Product | Photo | Package | size(LxWxHmm) | Load Voltage (V) | Load Current (mA) | RON(typ) | IFon (Max) (mA) | Topr (Min) (degC) | Topr (Max) (degC) | Viso (Vrms) | 下载 |
| KL860A |  |
DIP8 | 9.75x6.6x3.5 | 600 | 50 | 70 | 5 | -40 | 85 | 5000 |  |
| KL840A |  |
DIP8 | 9.75x6.6x3.5 | 400 | 120 | 30.0 | 5 | -40 | 85 | 5000 | |
| KL606A3 |  |
DIP6 | 7.1x6.48x3.5 | 600.0 | 2500 | 0.2 | 3 | -40 | 85 | 5000 | |
| KL660A |  |
DIP6 | 7.1x6.48x3.5 | 600.0 | 50 | 70.0 | 3 | -40 | 85 | 5000 | |
| KL625A |  |
DIP6 | 7.1x6.48x3.5 | 250.0 | 150 | 15.0 | 3.0 | -40 | 85 | 5000 | |
| KL640A |  |
DIP6 | 7.1x6.48x3.5 | 400.0 | 120 | 30.0 | 3.0 | -40 | 85 | 5000 | |
| KL606A |  |
DIP6 | 7.1x6.48x3.5 | 60.0 | 550 | 2.5 | 3 | -40 | 85 | 5000 | |
| KL460A |  |
DIP4 | 6.5x4.59x3.5 | 600.0 | 50 | 70.0 | 5 | -40 | 85 | 5000 | |
| KL440A |  |
DIP4 | 6.5x4.59x3.5 | 400.0 | 120 | 30.0 | 5 | -40 | 85 | 5000 | |
