台湾明纬电源授权经销商
上海兢纬电子科技有限公司
近年来，由于疫情的影响，我们面临着物料供应短缺和延迟的情况。为确保供应链稳定，MEAN WELL 对端子板生产采取了多渠道采购的方式。
IRM / MPM / WDR / SDR / MDR / DRA / DRC / DRS / SCP 等系列产品之间有一些微小的差异，包括外观，颜色，扭矩等方面的差异（详见下表）。
自2023年5月起，新的生产将会包括上述的更改，但请注意会有新旧版本并行出货。销售价格将保持不变，如果您对此事有任何疑问或关注，请联系MEAN WELL的代表以获取更多信息。
| Series | Items Changed in Terminal Block | Change in | ||
| Appearance/Color | Torque | |||
| Old New | Old | New | ||
IRM-30/60/90-ST MPM-30/45/65/90-ST | Splice 2 PIN -> Single 4 PIN Slight difference in appearance & color   (e.g., IRM-45-ST) | 5 | 3.5~4.4 | 2023.5 |
WDR-120/240/480 | Internal structure of the terminal is different & lighter color for new version   (e.g., WDR-120) | 9 | 4.4~7 | 2023.5 |
| SDR-240/480/480P | Internal structure of the terminal is different & lighter color for new version   (e.g., SDR-240) | 9 | 4.4~7 | 2023.5 |
| MDR-10/20 | Slight difference in appearance & color   (e.g., MDR-20) | 7 | 4.4 | 2023.5 |
| MDR-40/60/100 | Splice 3 PIN -> Single 6 PIN; Slight difference in appearance & color   (e.g., MDR-60) | 5 | 4.4 | 2023.5 |
DRA-40/60 DRC-40/60 | Splice 3 PIN -> Single 6 PIN; Slight difference in appearance and color   (e.g., DRA -40) | 5 | 4.4 | 2023.5 |
| DRS-480 | Internal structure of the terminal is different & lighter color for new version   | 9 | 4.4~7 | 2023.5 |
| SCP-35/50/75 | Internal structure of the terminal is different & lighter color for new version   (e.g., SCP-35) | 9 | 4.4~7 | 2023.5 |
