Star Domes ,Star Metal Domes

タイトルまたは説明

The star-shaped domes is similar to the cross-shaped domes , with four-legged support under the dome for a clear tactile feel and a variety of sizes and styles . Star domes are shaped switch contacts that were designed for mounting on single or double sided printed circuit boards , membranes switches , where traces can be fed under the domes on the same side of the board . 
Specifications:
Contact configuration: SPST Normally Open 
Plating: Nickel/Silver/Gold optional
Switching voltage: . 1 to *0 VDC
Switching capacity: 1 Watt
Switching current: . **5 to **0 mA DC
Contact Resistance（stainless steel）: <**0 ohms 
Contact Resistance（with gold plating）：<1 ohm 
Contact Bounce(make)：<0 . 3ms
Contact Bounce(break)：<0 . 6ms
Operation temperature rating: **5 ℃ to **0 ℃ 
Storage temperature rating: **5 ℃ to **0 ℃ 
Humidity: ***7% (no condensation)
Available diameters: 8 . 4mm , *0mm , *2 . 2mm
Activation forces: from **0g to **0g (1 . 8N to 4 . 0N)