Manufacturer's 3 * 4 matrix waterproof membrane switch keyboard microswitch plastic keypad

Product Name: 3 * 4 film switch button (pet silver paste printing line)

Product specification:69.2 * 76.9mm

Product Description:

Membrane switch key, Digital key and two function keys. The key is in compact layout, With 0.45mm stroke. The installation method is adhesive on the back. The whole thickness is 1mm, Simple and convenient installation, Beautiful appearance;

Electrical Parameters:

Working voltage: ≤ 50VDC / port / mil

Working current: ≤ 100mA

Contact resistance: 0.5 ~ 10 Ω (varies with lead length and material)

Insulation resistance: ≥ 100m Ω 100V

Basic withstand voltage: 2kdvc

Rebound time: ≤ 8ms

Loop resistance: 50 Ω, 150 Ω, 350 Ω, or as required by the user

Insulation ink withstand voltage: 100VDC

8) Mechanical Properties:

Closing displacement: 0.1-0.4mm (without touch) 0.4-1.0mm

Standard working force: 15-750g

Silver slurry migration: after 56 hours at 55 ℃, 90% temperature, 10m Ω / 50VDC between the two lines; there is no oxidation and impurities on the silver slurry line

Pin spacing standard 2.54, 2.5, 1.27, 1.25mm

The curvature resistance of outgoing line is made of D = 10 mm steel. Stick pressure 80 times continuous line

9) Environmental Parameters:

Working temperature: - 20 ℃ ~ + 70 ℃

Storage temperature: - 40 ℃ ~ + 85 ℃

Storage humidity: 95% ± 5%

Atmospheric pressure: 86 ~ 106kpa