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SG328C004 is listed in the Inrush Current Limiters (ICL) range at ChipApex. The manufacturer field lists Vishay Ametherm. Its product description is ICL 1R 25% 30A 31.75MM CUSTOM. Review the specifications below when checking this part for your BOM.
The SG328C004 is a custom inrush current limiter (ICL) from the Vishay Ametherm SG series. It features a nominal resistance of 1 Ohm with a tolerance of 25%. The device supports a maximum steady-state current of 30A and has a physical diameter of 31.75mm. This component is designed to limit surge currents during power-up events.
Verify the exact physical length and lead configuration against the specific datasheet revision, as custom variants may differ. Confirm that the 30A continuous current rating aligns with the operational thermal environment. Ensure the 1 Ohm resistance value meets the system's voltage drop requirements during normal operation.
Select this component when standard ICL sizes are insufficient due to spatial constraints. The 31.75mm diameter offers a balance between current handling and footprint. Consider the 25% resistance tolerance for worst-case scenario analysis in sensitive analog or precision power circuits.
This part belongs to the SG series of thermistors manufactured by Vishay Ametherm. These components utilize ceramic technology to provide reliable surge suppression. The SG series is widely recognized for its robustness in industrial and commercial power electronics applications requiring high-cycle durability.
Public confirmed substitute part numbers: AS321R036775.
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