Shenzhen BaoShengDa Technology Co., LTD (Original name: Shenzhen BaoLiDa Membrane Switch Factory) is the first factory of membrane switch and touch panel in domestic. We have been through the Quality Management System ISO9001 from 2008. So far, we have 35 years of quality. After the test of time and tide, our company becomes more and more stable and reliable. “The proof of the pudding Time reveals a man’s heart” Our company insists to win the reputation in the market through the quality of products and top technology and bring the genuine good products to customers.

Electrical Property：

Operating voltage：≤42VDC (25VAC)

Operating current：≤100mA

Loop resistance：≤70Ω

Insulation resistance：≥100MΩ

Mechanical property：

Life：≥1millon times（Flat type）

Operating force of button：15~750N

Contact bounce：≤10ms

Switch Stroke：0.1~0.4mm(flat type) 0.4~1.0mm(tactile)

Bending performance of tail：≤180 degree

Environments：

Operation temperature：-30~70 degree

Storage Temperature：-40~80 degree 
          Humidity：≤95%