| Electronics > Repair |
| Help identifying this part - 1178H |
| << < (3/5) > >> |
| daisizhou:
--- Quote from: fzabkar on September 07, 2024, 12:01:06 am ---3.0SMJC series are TVS diodes. https://www.mouser.com/datasheet/2/1057/3_0SMCJ_SERIES-1865170.pdf --- End quote --- Please see the picture |
| fzabkar:
It appears to be a fixed 3-terminal 3.3V linear regulator. The pinout from left to right appears to be Ground, Vin, Vout. |
| daisizhou:
Very true.I found that the output port and GND resistance is only 15 ohms. I uninstalled the 1178H and the 15 ohm disappeared. Finally 1178H is damaged,But I still don't know what the exact model of 1178H is |
| fzabkar:
What is the device and what is the output port connected to? |
| daisizhou:
--- Quote from: fzabkar on September 07, 2024, 12:49:53 am ---What is the device and what is the output port connected to? --- End quote --- The sensor is connected.I don't know the details, because I didn't see the sensor appear, only the sensor interface |
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