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MPN: LM393N. Case: DIP8. Dual Comparator. Manufactured: NATIONAL SEMICONDUCTOR.
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Therefore, make sure you need it before buying the product. You should receive the item within 2-4 weeks.
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eBay
The comparator inverting input (+). Delay output indicator, LED will light on when the Relay connect. Light Off when relay Disconnect. Comparison reversed-phase input (-). Relay normally open Pin. Standby power consumption: <0.5W 1.
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