| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | STHS4257A | IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor | 201K |
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| 2 | STHS4257A1 | IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor | 201K |
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