DC input

Circuit Protection of DC input

Protection Application:: For products that include an external AC adapter, a DC voltage (typically in the range of 5VDC to 6VDC) will be supplied. The electrical threats include ESD, low-level lightning surges, and overcurrent conditions (short circuit or overload).
Solution Description:: As shown at the left, a fuse or PTC can be used for short circuit and overload current conditions. For surge and ESD protection, an MLV can be used.
Companion Solutions:: Does not apply.
Regulatory Issues:: If ESD is a concern, the IEC 61000-4-2 can be consulted to find information on the test method and transient waveform that should be used.
Unique Features:: Does not apply.
Application Warnings:: Does not apply.