R3131N18EC-TR Low voltage detector with built-in delay circuit. Detector threshold 1.8V. Standard output delay time 240ms. Output type CMOS. Detection mode H series output. Taping type TR.
R3131N18EA-TR Low voltage detector with built-in delay circuit. Detector threshold 1.8V. Standard output delay time 240ms. Output type Nch open drain. Detection mode H series output. Taping type TR.