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
Pushbutton
Specifications
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.
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: 103
Ω
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.
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
SWITCH FUNCTION
POS. 1
NO.
POLES
SP
POS. 2
ACTUATION
FORCE
4.7 oz TYP.
N.O. with overtravel
SPST
A
Pushbutton
MODEL NO.
TOTAL TRAVEL
OFF
MOM.
.390 (9,91) TYP.
with overtravel
.311 TYP.
SCHEMATIC
8731
SPST
Part number shown: 8731SHZQE
with overtravel
.350 TYP.
SP
8732
OFF
MOM.
.390 (9,91) TYP.
2.2 oz TYP.
N.O. with overtravel
SPST
SPST
Part number shown: 8732S1HZQE
MOM. = Momentary
PLUNGER
S
.390" HIGH, BRASS
S1
.390" HIGH, PBT POLYESTER
Available with 8731 model only.
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
A
TERMINATIONS
Z
SOLDER LUG
Pushbutton
CONTACT MATERIAL
OPTION
CODE
RoHS
COMPLIANT *
YES
RoHS
COMPATIBLE *
YES
CONTACT
MATERIAL
SILVER
TERMINAL
PLATING
SILVER
POWER
RATINGS
Q
B
1 AMP @ 125 V AC OR 28 V DC.
YES
YES
GOLD
GOLD
LOW LEVEL/DRY CIRCUIT
0.4 VA MAX. @ 20 V AC OR DC MAX.
* 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
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