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This is a 5-pin power relay with model RWH-SH-118D (18V) and specification T73C-12A.
It is interchangeable with RWH-SH-105D, RWH-SH-112D, RWH-SH-124D, RWH-SH-148D series.
Designed for small control circuits, it features stable contact action, low heat generation, and long service life.
Widely used in smart home appliances, timers, small power controllers, security equipment and DIY electronic projects.
Standard pin definition allows direct plug-in replacement for maintenance use.