The invention belongs to the technical field of electrical elements, and particularly relates to a multi-mode
heat sink electrical component, which comprises a circuit board, a three-terminal voltagestabilization block and a mounting plate, and is characterized in that a limiting device is arranged on the circuit board and comprises an elastic sheet, sliding grooves are formed in the center linesof one surface of the mounting plate leftwards and rightwards, fixing devices are arranged in the sliding grooves, the fixing device comprises a first limiting block and a second limiting block, a clamping locking device is arranged on one surface of the mounting plate, and the clamping locking device comprises a fixing shaft. According to the multi-mode
heat sink electrical component, a leading-out terminal of the three-
terminal voltage stabilization block is in
close contact with one surface of the circuit board, the two limiting plates are matched with each other and are in
close contact with and fixed to the two sides of the leading-out terminal of the three-
terminal voltage stabilization block, the part, making contact with the circuit board, of the multi-mode
heat sink electrical component is prevented from deviating in the using process, one end of a clamping rod coincides with a clamping slot and is clamped, the three-end
voltage stabilization block and the mounting plate arescrewed and fixed through a
threaded rod and a threaded hole, and the three-
terminal voltage stabilization block can be disassembled from the circuit board by disassembling the
threaded rod.