2.5G SFP DWDM 120km 光模块系列：怎么选
本页汇总北亿纤通（F-tone）2.5G SFP DWDM 120km 光模块全系列，共 45 个 ITU 100GHz 通道（C17–C61）。各型号除通道和中心波长外，其余参数相同：传输速率 2.5Gbps，SFP 封装，双工 LC 接口，单模光纤（SMF），最远 120km，DWDM DFB（制冷）激光器，APD 接收，发射光功率 0~+4.0dBm，接收灵敏度 < -30.0dBm，符合 MSA，工作温度可选商业级 / 工业级 / 军品级。
1. 选通道 / 波长
DWDM 链路两端模块的通道必须和复用 / 解复用器（Mux/Demux）的端口一一对应。先确认波分设备使用的 ITU 通道号（Cxx），再在下表中按通道号选料号。料号规则：SFP-DW2G{通道号}-120C，例如 C37 对应 SFP-DW2G37-120C。中心波长与频率按 ITU-T G.694.1 100GHz 栅格（频率 = 190.0THz + 通道号 × 0.1THz）。
2. 选距离与功率预算
按本系列参数，最小发射光功率 0dBm、接收灵敏度 -30.0dBm，可用功率预算约 30dB。实际选型时请用链路实测损耗（光纤衰减 + Mux/Demux 插损 + 接头、熔接损耗），并预留余量；损耗超出预算时需要加光放大，链路较短时注意接收端不要过载，必要时加衰减器。120km 是型号标称的最远距离，最终以实际链路测试为准。
3. 兼容与温度
本系列为符合 MSA 的 F-tone 自有型号。需要匹配特定交换机或传输设备、或需要工业级 / 军品级温度时，请在询价时注明设备型号与使用环境。
4. 典型应用
城域与接入网中的 DWDM 波分扩容、2.5G 业务（如 STM-16 / OC-48 级别速率）在单根光纤上多通道复用传输、远距离点对点链路。
5. 订购与 OEM
样品与批量交期请联系销售确认。公司具备从光器件到整机的自行研发生产能力，可提供 OEM（ODM）、产品定制与批量供货，详见 关于我们 与 技术支持，或 联系我们。
全系列型号与参数
| 通道 | F-tone 料号 | 中心波长 | 频率 | 发射光功率 | 接收灵敏度 | 激光器 / 探测器 | 产品页 |
|---|---|---|---|---|---|---|---|
| C17 | SFP-DW2G17-120C | 1563.86nm | 191.7THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C18 | SFP-DW2G18-120C | 1563.05nm | 191.8THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C19 | SFP-DW2G19-120C | 1562.23nm | 191.9THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C20 | SFP-DW2G20-120C | 1561.42nm | 192.0THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C21 | SFP-DW2G21-120C | 1560.61nm | 192.1THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C22 | SFP-DW2G22-120C | 1559.79nm | 192.2THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C23 | SFP-DW2G23-120C | 1558.98nm | 192.3THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C24 | SFP-DW2G24-120C | 1558.17nm | 192.4THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C25 | SFP-DW2G25-120C | 1557.36nm | 192.5THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C26 | SFP-DW2G26-120C | 1556.55nm | 192.6THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C27 | SFP-DW2G27-120C | 1555.75nm | 192.7THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C28 | SFP-DW2G28-120C | 1554.94nm | 192.8THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C29 | SFP-DW2G29-120C | 1554.13nm | 192.9THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C30 | SFP-DW2G30-120C | 1553.33nm | 193.0THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C31 | SFP-DW2G31-120C | 1552.52nm | 193.1THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C32 | SFP-DW2G32-120C | 1551.72nm | 193.2THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C33 | SFP-DW2G33-120C | 1550.92nm | 193.3THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C34 | SFP-DW2G34-120C | 1550.12nm | 193.4THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C35 | SFP-DW2G35-120C | 1549.32nm | 193.5THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C36 | SFP-DW2G36-120C | 1548.51nm | 193.6THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C37 | SFP-DW2G37-120C | 1547.72nm | 193.7THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C38 | SFP-DW2G38-120C | 1546.92nm | 193.8THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C39 | SFP-DW2G39-120C | 1546.12nm | 193.9THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C40 | SFP-DW2G40-120C | 1545.32nm | 194.0THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C41 | SFP-DW2G41-120C | 1544.53nm | 194.1THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C42 | SFP-DW2G42-120C | 1543.73nm | 194.2THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C43 | SFP-DW2G43-120C | 1542.94nm | 194.3THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C44 | SFP-DW2G44-120C | 1542.14nm | 194.4THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C45 | SFP-DW2G45-120C | 1541.35nm | 194.5THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C46 | SFP-DW2G46-120C | 1540.56nm | 194.6THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C47 | SFP-DW2G47-120C | 1539.77nm | 194.7THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C48 | SFP-DW2G48-120C | 1538.98nm | 194.8THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C49 | SFP-DW2G49-120C | 1538.19nm | 194.9THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C50 | SFP-DW2G50-120C | 1537.40nm | 195.0THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C51 | SFP-DW2G51-120C | 1536.61nm | 195.1THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C52 | SFP-DW2G52-120C | 1535.82nm | 195.2THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C53 | SFP-DW2G53-120C | 1535.04nm | 195.3THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C54 | SFP-DW2G54-120C | 1534.25nm | 195.4THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C55 | SFP-DW2G55-120C | 1533.47nm | 195.5THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C56 | SFP-DW2G56-120C | 1532.68nm | 195.6THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C57 | SFP-DW2G57-120C | 1531.90nm | 195.7THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C58 | SFP-DW2G58-120C | 1531.12nm | 195.8THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C59 | SFP-DW2G59-120C | 1530.33nm | 195.9THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C60 | SFP-DW2G60-120C | 1529.55nm | 196.0THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |
| C61 | SFP-DW2G61-120C | 1528.77nm | 196.1THz | 0~+4.0dBm | < -30.0dBm | DWDM DFB (Cooled) / APD | 查看 |