圜达-Diptronics
圜达实业股份有限公司创立於 1985年，专业研发制造各项程式开关、触动开关，更逐渐延伸到其它精密开关产品，如：滑动开关、侦测开关及旋转开关等。凭藉著持续累积的研发实力、生产技术及市场行销经验，圜达公司坚持提供给客户优良的品质、快速的交期和专业的技术支援与服务。
程式开关
NDA
Features: Right Angle
No. Of Poles: 2-10, 12
NDS
Features: Slide
No. Of Poles: 1-10, 12
NDI
Features: Through Hole
No. Of Poles: 1-10, 12
D(M)(J)(L)
Features: SMT
No. Of Poles: 1-10, 12
EP(I)(M)
Features: End Stackable Piano
No. Of Poles: 2,4,6,8,10
NP(I)(M)
Features: Piano
No. Of Poles: 2,4,6,8,10
E(M)(I)(S)(J)
Features: End Stackable
No. Of Poles: 1-10, 12
DHA
Features: Half Pitch (H:2.2mm)
No. Of Poles: 2,4,6,8,10,12
DHN(F)
Features: Half Pitch (H:1.6mm)
No. Of Poles: 2,4,6,8,10