| FU-645PDF-V1M1B | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |
| FU-645PDF-V1M2C | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |
| FU-645PDF-W1M1B | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |
| FU-645PDF-W1M2C | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |
| FU-645SDF-1M1B | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |
| FU-645SDF-1M2C | Uncooled DFB-LD module in 8-pin -- package. Operational temperature range from -5°C to 70°C. | Datasheet*) |