Technical parameters of thin film switch
1.Working voltage: <50V(DC)
2.Working current: <100mA
3.Contact resistance: 0.5~10
4.Insulation Resistance: > 100M(100V/DC)
5.Substrate withstand voltage: 2kV (DC)
6.Springback time: <6ms
7.Loop resistance: 50_, 150_, 350_three grades, or user needs to determine.
8.Pressure Resistance of Insulating Ink: 100V/DC
1.Reliability service life: > 1 million times
2.Closed displacement: 0.1-0.4 mm (tactile type) 0.4-1.0 mm (tactile type)
3.Ability of standard-building: 15-750g
4.The migration of conductive silver paste: at 55 C, 90% temperature, after 56 hours, the second line is 10M/50VDC.
5.No oxidation and impurities on silver paste line
6.Silver paste line width (> 0.3 mm), minimum interval (< 0.3 mm), line edge (< 1/3), line gap (< 1/4 line width)
7.Pin spacing standard 2.54 2.50 1.27 1.25 1.0 0.5 mm
8.Curvature resistance of lead-out line, rolling 80 times with d=10mm steel bar continuously.
1.Working Temperature: -20 ~+70 65507
2.Storage temperature: - 40 ~85 ~95%+5%
3.Atmospheric pressure: 86-106 KPa
1.Printing size deviation (+0.10 mm), outline blurred editing error (+0.1 mm)
2.Chromatization deviation (+0.11mm/100mm), insulating ink covering all silver paste lines
3.No ink scattered, no handwriting incomplete
4.The chromatic aberration is not greater than the second order.
5.No creases or paint stripping shall be allowed.
6.Transparent windows are transparent, clean and uniform in color. No scratches, pinholes or impurities are allowed.
For maintenance personnel, some old-fashioned equipment can record the line number corresponding to the button when it is not equipped with the thin film switch used in the original machine, and then replace it with the general button (touch switch) plus group wire. The effect is exactly the same, but it takes a lot of trouble!