| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 2SB1557 | TRANSISTOR (POWER AMPLIFIER APPLICATIONS) | 148K |
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| 2 | 2SB1557A | TRANSISTOR | BJT | DARLINGTON | PNP | 140V V(BR)CEO | 7A I(C) | TO-247VAR | 187K |
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| 3 | 2SB1557B | TRANSISTOR | BJT | DARLINGTON | PNP | 140V V(BR)CEO | 7A I(C) | TO-247VAR | 187K |
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| 4 | 2SB1557C | TRANSISTOR | BJT | DARLINGTON | PNP | 140V V(BR)CEO | 7A I(C) | TO-247VAR | 187K |
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