8700 Datasheet, PDF (1/3 Pages) ITT Industries – Overtravel Pushbutton Switches

8700 Series
Overtravel Pushbutton Switches
A
Features/Benefits
• Extended pre-travel or over-travel
• Heavy-duty brass plunger
• Long electrical life — 100K cycles
• RoHS compliant
Typical Applications
• Telecommunications
• High end Instrumentation
• Medical & test equipment
• Detection
Specifications
CONTACT RATING: Q contact material: 1 AMP @
120 V AC or 28 V DC. See page A-76 for additional ratings.
ELECTRICAL LIFE: 100,000 actuations at full load.
CONTACT RESISTANCE: Below 30 mΩ typ. Initial @
2-4 V DC, 100 mA.
INSULATION RESISTANCE: 103Ω min.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 65ºC.
NOTE: Any models supplied with Q, or B contact material are RoHS compliant.
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
Materials
CASE: Diallyl phthalate (DAP) (UL 94V-0).
PLUNGER:
8731 – .390" brass, nickel plated.
8732 – .390" PBT polyester, black.
BUSHING: brass, nickel plated.
CONTACTS: Q contact material: Coin silver, silver plated. See page
A-76 for additional contact materials.
TERMINALS: Q contact material: Copper alloy, silver plated. See page
A-76 for additional contact materials.
TERMINAL SEAL: Epoxy.
HARDWARE: Nut: Brass, nickel plated; lockwasher: Steel, bright nickel
plate. One mounting nut & lockwasher supplied with all switches.
Build-A-Switch
To order, simply select desired option from each category and place in the appropriate box. Available options are shown
and described on pages A-75 and A-76. For additional options not shown in catalog, consult Customer Service Center. All
models have epoxy terminal seal and are compatible with all “bottom-wash” PCB cleaning methods.
Switch Function
8731 SPST Off-Mom.
8732 SPST Off-Mom.
Plunger
S .390" high, brass
S1 .390" high, polyester
Bushing
H .250" high
Terminations
Z Solder lug
Contact Material
Q Silver
B Gold
Seal
E Epoxy
A-74
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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