The specification for a metal pushbutton switch can vary depending on the application and manufacturer. However, typical specifications to consider include:
Electrical Specifications
Rated Voltage: The maximum voltage the switch can handle (e.g., 12V, 24V, 120V, 240V).
Rated Current: The maximum current the switch can handle (e.g., 1A, 3A, 5A).
Contact Resistance: The resistance across the contacts when the switch is closed, usually measured in milliohms (mΩ).
Insulation Resistance: The resistance between the contacts when the switch is open, typically measured in megaohms (MΩ).
Dielectric Strength: The maximum voltage the switch can withstand between the contacts and the case without breaking down, usually specified in volts (V).
Mechanical Specifications
Button Actuation Force: The force required to press the button, measured in grams-force (gf) or newtons (N).
Travel Distance: The distance the button moves when pressed, measured in millimeters (mm).
Switch Life: The number of times the switch can be operated (pressed and released) before failure, often specified in thousands or millions of cycles.
Mounting Type: Panel mount, PCB mount, or surface mount, with details on mounting hole size and thread type.
Environmental Specifications
Operating Temperature Range: The range of ambient temperatures the switch can operate in, typically specified in degrees Celsius (°C).
Storage Temperature Range: The range of temperatures the switch can be stored in without damage.
Ingress Protection (IP) Rating: Indicates the level of protection against dust and water (e.g., IP65, IP67).
Vibration and Shock Resistance: The switch's ability to withstand mechanical vibrations and shocks, usually specified in Gs or m/s².
Physical Specifications
Dimensions: The size of the switch, including diameter, height, and panel cutout dimensions.
Material: The materials used for the button cap, housing, and contacts (e.g., stainless steel, brass, gold-plated contacts).
LED Indicator: If the switch has an integrated LED, specifications for the LED, such as color, voltage, and current.
Example Specification
Here's an example of a typical metal pushbutton switch specification:
Rated Voltage: 12V DC
Rated Current: 3A
Contact Resistance: ≤50 mΩ
Insulation Resistance: ≥100 MΩ
Dielectric Strength: 1500V AC for 1 minute
Button Actuation Force: 4.5N
Travel Distance: 2.5mm
Switch Life: 500,000 cycles
Mounting Type: Panel mount, 16mm diameter cutout
Operating Temperature Range: -20°C to 70°C
Storage Temperature Range: -40°C to 85°C
Ingress Protection (IP) Rating: IP67
Material: Stainless steel housing, silver-plated brass contacts
LED Indicator: Red, 12V, 20mA
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