解答：静电等级根据元器件的敏感级别来划分,以HBM为基础,静电等级可分为: Class            Voltage Range
0                 < 250 V
1A               250 to < 500 V
1B               500 to < 1000 V
1C               1000 to < 2000 V
2                2000 to < 4000 V
3A               4000 to < 8000 V
3B               ≥8000 V 

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