Technical article2026-07-11
HPO Alarm and Overheat Functions
HPO combines solid-state switching with control, alarm and overheat indication for supervised loads.
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Junction-to-case, case-to-heatsink and heatsink-to-ambient thermal resistances form one design chain.
Junction-to-case, case-to-heatsink and heatsink-to-ambient thermal resistances form one design chain.
Use the applicable HEATA series datasheet and verify the complete operating conditions before design release.
HPO combines solid-state switching with control, alarm and overheat indication for supervised loads.
Read articleUse rated current, trigger mode, heat-sink resistance and ambient derating together when selecting an HPA model.
Read articleReview pin assignment, soldering limits, isolation and temperature derating before PCB release.
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