A transistor optocoupler is a device that combines two components, a transistor and an optocoupler. It is a device composed of a light emitting diode, a photosensitive triode and a transistor. The transistor optocoupler has isolation properties and amplification functions, and can be used to isolate high-voltage circuits from low-voltage circuits, or used to realize functions such as photoelectric control.
| 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) | File |
| 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 | |
