Nitinol Shape Memory Actuator (SMA) Wire, whose physical function resembles biological muscle, will contract (shorten) when it is activated by electrical heating above its transition temperature. When the material cools, it can be stretched back to its original length for subsequent actuation cycles.
Diameter Range, mm [inch]
0.025~0.5 [0.00098~0.01969]
Surface State Option
Oxide Surface
Dimensions & Tolerances
Diameter and Tolerances, mm [inch]
Approximate Shortening (%)
Maximum Load Force (N)
Resistance (Ω/M)
Recommended Current by Electrifying for 1 sec (mA)
0.025±0.002 [0.00098±0.00008]
2-5
0.07
2037.18
45
0.050±0.002 [0.00197±0.00008]
2-5
0.29
509.30
85
0.100±0.004 [0.00394±0.00016]
2-5
1.18
127.32
200
0.150±0.004 [0.00591±0.00016]
2-5
2.65
56.59
410
0.180±0.004 [0.00709±0.00016]
2-5
3.82
39.30
556
0.200±0.005 [0.00787±0.00020]
2-5
4.71
31.83
660
0.250±0.005 [0.00984±0.00020]
2-5
7.36
20.37
1050
0.300±0.007 [0.01181±0.00028]
2-5
10.6
14.00
1435
0.400±0.010 [0.01575±0.00039]
2-5
18.84
8.00
2490
0.500±0.010 [0.01969±0.00039]
2-5
29.44
5.10
3845
Diameter and Tolerances, mm [inch]
Approximate Shortening (%)
Maximum Load Force (N)
0.025±0.002 [0.00098±0.00008]
2-5
0.07
0.050±0.002 [0.00197±0.00008]
2-5
0.29
0.100±0.004 [0.00394±0.00016]
2-5
1.18
0.150±0.004 [0.00591±0.00016]
2-5
2.65
0.180±0.004 [0.00709±0.00016]
2-5
3.82
0.200±0.005 [0.00787±0.00020]
2-5
4.71
0.250±0.005 [0.00984±0.00020]
2-5
7.36
0.300±0.007 [0.01181±0.00028]
2-5
10.6
0.400±0.010 [0.01575±0.00039]
2-5
18.84
0.500±0.010 [0.01969±0.00039]
2-5
29.44
Resistance (Ω/M)
Recommended Current by Electrifying for 1 sec (mA)