2 PC) MICROSEMI JANTX1N754A-1 Zener Diode, Two Terminal, 6.8 Volt, 5%, DO- | eBay
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SMD Zener Diode datasheet » Electrical Learner
Do you have an idea how to identify this faulty zener diode? It's from automotive PCB and it was marked as "ZD" on PCB. It is damaged (0Ohms in both directions) so