tHt

THT is an acronym that can refer to several terms across different domains. The most common meaning in electronics and manufacturing is Through-Hole Technology, a method for mounting components on printed circuit boards where leads pass through holes and are soldered on the opposite side.

Through-Hole Technology (THT) describes a mounting approach in which component leads are inserted into drilled holes in a PCB and secured by soldering on the solder side. It provides strong mechanical connections and is favored for power components, connectors, and prototype boards, where manual assembly and easier part replacement are important. Compared with surface-mount technology (SMT), THT typically offers lower component density, slower automated assembly, and greater board size, leading to its gradual decline in mainstream production. Nevertheless, THT remains in use for specialized applications, high-reliability hardware, and education or hobbyist projects where through-hole parts are preferred for ease of handling.

In chemistry, THT may refer to tetrahydrothiophene, a saturated sulfur-containing heterocycle. This usage is less standardized than the electronics sense and depends on context; tetrahydrothiophene appears in some discussions of sulfur-containing cyclic compounds and related synthesis. Because chemical abbreviations can vary by publication, readers should verify the exact meaning of THT in any given context.

Other uses of the acronym exist in organizational names, product codes, or industry programs, but they are far less standardized than the electronics sense. As with many acronyms, the intended meaning of THT is determined by the domain and context in which it appears.