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开关电源PCB_LAYOUT原则(网络内容,以备后用)

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二、功能绝缘爬电距离建议如下:(不作严格要求)

电压范围                                             推荐最小爬电距离

                        小于30V............................................ 0.3mm

30 - 50V ………................................................. 0.8 mm

50 - 100V .......................................................... 1.0 mm

100 - 200V............................................................. 1.5 mm

200 - 300V............................................................. 2.0 mm

300 - 400V............................................................. 2.5 mm

400 - 600V............................................................. 3.2 mm

600 - 1000V........................................................... 5.0 mm

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