Actuator subassembly (10; 20; 30) comprising: - a body with a base (11; 21; 31) with at least two terminals (14; 24; 34, 34') configured to mechanically fix and supply current to a shape memory alloy wire, - at least one shape memory alloy wire (13; 23, 23'; 33, 33') connected to said at least two terminals (14; 24; 34, 34'), - at least one bendable slender structure (12; 22, 22'; 32, 32') whose bending is controlled by said at least one shape memory alloy wire (13; 23, 23'; 33, 33'), said at least one bendable slender structure (12; 22, 22'; 32, 32') having a height H with slenderness ratio ≥3:1 and preferably ≤10:1, a proximal end fixed to said base (11; 21; 31) and a free distal end (121; 221, 221'; 321, 321'), - coupling means (15; 25, 25'; 35, 35') to connect a first surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') with the base (11; 21; 31) through the at least one shape memory alloy wire (13; 23, 23'; 33, 33'), - a plug (16; 26, 26'; 36, 36') that is arranged on a second surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') opposite to said first surface, wherein both said plug (16; 26, 26'; 36, 36') and said coupling means (15; 25, 25'; 35, 35') have a distance within H/3, preferably within H/5, from said free distal end (121; 221, 221'; 321, 321') of the at least one bendable slender structure (12; 22, 22'; 32, 32'), - an installation feature (17; 27, 27'; 37, 37') that is arranged on the second surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') opposite to the first surface at a position between the plug (16; 26, 26'; 36, 36') and the free distal end (121; 221, 221'; 321, 321') farther from the base (11; 21; 31) than any other relevant component of the actuator subassembly to guarantee higher reliability and more flexibility of use in a final device, as well as for preventing damages to a sealing area during the actuator subassembly installation in a final device, characterized in that an angle formed by the at least one bendable slender structure (12; 22, 22'; 32, 32') with the base (11; 21; 31) when the at least one shape memory alloy wire (13; 23, 23'; 33, 33') is not bending the at least one bendable slender structure (12; 22, 22'; 32') is comprised between 80° and 89° when measured on an outer surface of the at least one bendable slender structure (12; 22, 22'; 32, 32'), wherein the outer surface is the second surface of the at least one bendable structure (12; 22, 22'; 32'), so as to have the at least one bendable slender structure (12; 22, 22'; 32') inclined toward an outer side of the actuator subassembly (10; 20; 30), wherein the outer side is the same as the side of the plug (16; 26, 26'; 36, 36'). - a body with a base (11; 21; 31) with at least two terminals (14; 24; 34, 34') configured to mechanically fix and supply current to a shape memory alloy wire, - at least one shape memory alloy wire (13; 23, 23'; 33, 33') connected to said at least two terminals (14; 24; 34, 34'), - at least one bendable slender structure (12; 22, 22'; 32, 32') whose bending is controlled by said at least one shape memory alloy wire (13; 23, 23'; 33, 33'), said at least one bendable slender structure (12; 22, 22'; 32, 32') having a height H with slenderness ratio ≥3:1 and preferably ≤10:1, a proximal end fixed to said base (11; 21; 31) and a free distal end (121; 221, 221'; 321, 321'), - coupling means (15; 25, 25'; 35, 35') to connect a first surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') with the base (11; 21; 31) through the at least one shape memory alloy wire (13; 23, 23'; 33, 33'), - a plug (16; 26, 26'; 36, 36') that is arranged on a second surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') opposite to said first surface, wherein both said plug (16; 26, 26'; 36, 36') and said coupling means (15; 25, 25'; 35, 35') have a distance within H/3, preferably within H/5, from said free distal end (121; 221, 221'; 321, 321') of the at least one bendable slender structure (12; 22, 22'; 32, 32'), - an installation feature (17; 27, 27'; 37, 37') that is arranged on the second surface of the at least one bendable slender structure (12; 22, 22'; 32, 32') opposite to the first surface at a position between the plug (16; 26, 26'; 36, 36') and the free distal end (121; 221, 221'; 321, 321') farther from the base (11; 21; 31) than any other relevant component of the actuator subassembly to guarantee higher reliability and more flexibility of use in a final device, as well as for preventing damages to a sealing area during the actuator subassembly installation in a final device,