Stackpole has achieved "UL Recognized Component" status for its 4 watt axial leaded fusible wirewound series, the SP3A, through qualification to UL1412 (File # E344795). This series has a welded element which combines the outstanding surge handling characteristics associated with wirewound resistors with the failsafe operation required by UL1412. This UL spec was created to ensure that electronic components do not pose a fire or electrical shock hazard. Stackpole's proprietary fusible resistor design yields a reliable and repeatable fusing characteristic so that the part fails quickly, safely, and without generating excess heat.
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