| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | UNR221L | Silicon NPN epitaxial planar transistor | 447K |
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| 2 | UNR221L | Silicon NPN epitaxial planar transistor | 447K |
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| 3 | UNR221L(UN221L) | Composite Device - Transistors with built-in Resistor | 286K |
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| 4 | UNR221L|UN221L | Composite Device - Transistors with built-in Resistor | 447K |
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