8700 Series Overtravel Pushbutton Switches Features/Benefits • Extended pre-travel or over-travel • Heavy-duty brass plunger • Long electrical life — 100K cycles • RoHS compliant Pushbutton A Typical Applications • Telecommunications • High end Instrumentation • Medical & test equipment • Detection Specifications Materials CONTACT RATING: Q contact material: 1 AMP @ 120 V AC or 28 V DC. See page A-76 for additional ratings. CASE: Diallyl phthalate (DAP) (UL 94V-0). 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. 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. DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level. OPERATING TEMPERATURE: –30ºC to 65ºC. TERMINALS: Q contact material: Copper alloy, silver plated. See page A-76 for additional contact materials. NOTE: Any models supplied with Q, or B contact material are RoHS compliant. TERMINAL SEAL: Epoxy. NOTE: Specifications and materials listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. 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 Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-74 www.ck-components.com 8700 Series Overtravel Pushbutton Switches SWITCH FUNCTION A Pushbutton SWITCH FUNCTION POS. 1 NO. POLES SP POS. 2 MODEL NO. 8731 ACTUATION FORCE TOTAL TRAVEL OFF MOM. .390 (9,91) TYP. with overtravel .311 TYP. MOM. .390 (9,91) TYP. with overtravel .350 TYP. SCHEMATIC 4.7 oz TYP. N.O. with overtravel SPST 2.2 oz TYP. N.O. with overtravel SPST SPST Part number shown: 8731SHZQE SP 8732 OFF SPST Part number shown: 8732S1HZQE MOM. = Momentary PLUNGER S S1 .390" HIGH, BRASS Available with 8731 model only. .390" HIGH, PBT POLYESTER Available with 8732 model only. BUSHING H .250" HIGH PANEL MOUNTING Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-75 www.ck-components.com 8700 Series Overtravel Pushbutton Switches TERMINATIONS Pushbutton A Z SOLDER LUG CONTACT MATERIAL OPTION CODE RoHS COMPLIANT * RoHS COMPATIBLE * CONTACT MATERIAL TERMINAL PLATING Q YES YES SILVER SILVER POWER 1 AMP @ 125 V AC OR 28 V DC. B YES YES GOLD GOLD LOW LEVEL/DRY CIRCUIT 0.4 VA MAX. @ 20 V AC OR DC MAX. RATINGS * Note: See Technical Data section of this catalog for RoHS compliant and compatible definition and specifications. NOTE: Any models supplied with Q, or B contact material are RoHS compliant. SEAL E EPOXY SEAL Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change A-76 www.ck-components.com