晶体管光耦是将晶体管和光耦两种元件结合在一起的一种器件。它是由一个发光二极管、一个光敏三极管和一个晶体管组成的器件。晶体管光耦具有隔离性能和放大功能，能够用于隔离高压电路和低压电路，或者用于实现光电控制等功能。
| Product | Photo | Package | size(LxWxHmm) | VF (V) | BV CEO (Min) (V) | V CE(SAT) (Max) (V) | IF (mA) | CTR (%) | tr (uS) | tf (uS) | ton (uS) | toff (uS) | Topr (Min) (degC) | Topr (Max) (degC) | Viso (Vrms) | 下载 |
| KL4N38 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 1 | ±10 | >20 | - | - | 10 | 9 | -55 | 110 | 5000 |  |
| KL4N37 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.3 | ±10 | >100 | - | - | 10 | 9 | -55 | 110 | 5000 | |
| KL4N35 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.3 | ±10 | >100 | - | - | 10 | 9 | -55 | 110 | 5000 | |
| KL4N36 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.3 | ±10 | >100 | - | - | 10 | 9 | -55 | 110 | 5000 | |
| KL4N27 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.5 | ±10 | >10 | - | - | 3 | 3 | -55 | 110 | 5000 | |
| KL4N28 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.5 | ±10 | >10 | - | - | 3 | 3 | -55 | 110 | 5000 | |
| KL4N26 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.5 | ±10 | >20 | - | - | 3 | 3 | -55 | 110 | 5000 | |
| KL4N25 |  |
DIP6 | 7.1x6.48x3.5 | 1.2 | 80 | 0.5 | ±10 | >20 | - | - | 3 | 3 | -55 | 110 | 5000 | |
