| Product | 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) |
| KL4N25 | DIP6 | 7.1x6.5x3.5 | 1.2 | 80 | 0.5 | 10 | >20 | - | - | 3 | 3 | -55 | +110 | 5000 |
| Broadcom/Avago | Onsemi/Fairchild | Toshiba | Vishay | Liteon | EL | Cosmo | Sharp | QUNXIN |
| 4N25 | 4N25M | 4N25 | 4N25 | 4N25 | 4N25 | K2010 | QX4N25 |
