 特点
 profile as low as only 2.3mm.
sharp index feedback is ensured by
the metal contact structure employed.
externally measures 10.0mm x
10.0mm x2.3mm.
reflow-solderable.
4 way and center push operation
are possible.
应用范围
mobile telephones,vcr cameras,
stereo headphones,car radios,
pda,notebook pc. 
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min.(dc250v)
30gf