| Product | Package | size(LxWxHmm) | Data Transfer Rate (Mbps) | Supply Voltage（V) | tPHL(ns) | tPLH(ns) | IFT (mA) | CTR(%) | CMR(V/us) | Io(mA) | Topr (Min) (degC) | Topr (Max) (degC) | Viso (Vrms) |
| KL6N138 | DIP8 | 9.75x6.6x3.5 | 0.3 | 7 | 10 | 35 | 1.6 | >300 | 1000 | 60 | -40 | +85 | 5000 |
| Broadcom/Avago | Onsemi/Fairchild | Toshiba | Vishay | Liteon | EL | Cosmo | Sharp | QUNXIN |
| 6N138 | 6N138M | TLP553 | 6N138 | EL6N138 | 6N138-L |
