| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | TL490C | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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| 2 | TL490C | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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| 3 | TL490CJ | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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| 4 | TL490CJ | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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| 5 | TL490CN | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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| 6 | TL490CN | 10-STEP ADJUSTABLE ANALOG LEVEL DETECTOR | 250K |
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