| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | LM1812 | ULTRASONIC TRANSCEIVER | 508K |
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| 2 | LM1812 | ULTRASONIC TRANSCEIVER | 508K |
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| 3 | LM1812N | SONAR CIRCUIT|BIPOLAR|DIP|18PIN|PLASTIC | 299K |
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| 4 | LM1812N/B+ | SONAR CIRCUIT|BIPOLAR|DIP|18PIN|PLASTIC | 299K |
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