R3131N21EA-TR Low voltage detector with built-in delay circuit. Detector threshold 2.1V. Standard output delay time 240ms. Output type Nch open drain. Detection mode H series output. Taping type TR.
R3131N21EC-TR Low voltage detector with built-in delay circuit. Detector threshold 2.1V. Standard output delay time 240ms. Output type CMOS. Detection mode H series output. Taping type TR.
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