| 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) |
| KL2501N | DIP4 | 6.5x4.58x3.5 | 1.2 | 80 | 0.3 | 5 | 80~600 | 3 | 5 | - | - | -55 | +110 | 5000 |
| Broadcom/Avago | Onsemi/Fairchild | Toshiba | Vishay | Liteon | EL | Cosmo | Sharp | QUNXIN |
| EL2501H/EL2501W/EL2501L/EL2501K |
