8500 Series
Subminiature Pushbutton Switches
A
Features/Benefits
•
Pre-travel or over-travel models
available
Pushbutton
•
Ratings up to 3 AMPS
•
Reliable contact design
•
RoHS compliant
Typical Applications
•
Detection
•
Telecommunications and
networking equipment
•
Computers and peripherals
Models Available
Specifications
CONTACT RATING: Q contact material (853X Models): 1 AMP @
120 V AC or 28 V DC; (855X Models): 3 AMPS @ 120 V AC or
28 V DC. See page A-65 for additional ratings.
ELECTRICAL LIFE:
853X MODELS: 250,000 actuations at full load.
855X MODELS: 10,000 actuations at full load.
CONTACT RESISTANCE: Below 30 mΩ typ. initial @
2-4 V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109Ω min.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 65ºC.
TORQUE SPECS: T, T1 15/32” bushings - 50 in. lbs max.
All other 1/4 -40 bushing types 12 in. lbs max.
Materials
CASE: Glass filled phenolic or diallyl phthalate (DAP) (UL 94V-0).
PLUNGER: Phenolic or glass filled polyester, black standard(UL94V-0).
CAP & FRAME: Nylon, black, standard.
BUSHING: Brass, nickel plated.
CONTACTS: Q contact material: Coin silver, silver plated. See page
A-65 for additional contact materials.
TERMINALS: Q contact material: Copper alloy, silver plated. See page
A-65 for additional contact materials.
TERMINAL SEAL: Epoxy.
HARDWARE: Nut: Brass, nickel plated; Lockwasher: Steel, bright
nickel plated.
NOTE:
Any models supplied with Q, B or G 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-63 thru A-66. 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
8531
SPST Off-Mom. 1 Amp
8532
SPST Off-Mom. 1 Amp
8533
SPST On-Mom. 1 Amp
8534
SPST On-Mom. 1 Amp
8551
SPST Off-Mom. 3 Amps
8552
SPST Off-Mom. 3 Amps
Actuator or Plunger
M
.150” high
J81
Snap-in with frame
J82
Snap-in with frame for LED
S
.210” high
T
15/32 bushing
T1
15/32 bushing with frame
(8532 and 8534 only)
Terminations
Z
Solder lug
AV*
Right angle, PC thru-hole
C
PC Thru-hole
Contact Material
Q
Silver
B
Gold
Seal
G
Gold over silver
E
Epoxy
D
No epoxy seal
Cap or Plunger Color
2
Black
1
White
3
Red
Frame Color
9
Gray
2
Black
NONE
Models without frame
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
* Available with M or S plunger models, and B contact material only.
A-62
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8500 Series
Subminiature Pushbutton Switches
SWITCH FUNCTION
SWITCH FUNCTION
POS. 1
POS. 2
A
Pushbutton
NO.
POLES
MODEL
NO.
RATING
1 AMP
OFF
3 AMPS
MOM.
TOTAL TRAVEL
ACTUATION
FORCE
SCHEMATIC
SP
8531
8551
.095 (2,41) TYP.
with overtravel
.042 (1,07) TYP.
7.7 oz (220g) TYP.
N.O. with overtravel
SPST
Part number shown: 8531MZQE2
SP
8532
8552
1 AMP
OFF
3 AMPS
MOM.
.050 (1,27) TYP.
6 oz (170g) TYP.
N.O.
SPST
Part number shown: 8532MZQE2
SP
8533
8534
1 AMP
1 AMP
ON
ON
MOM.
MOM.
.080 (2,03) TYP.
.032 (0,81) TYP.
with pretravel
.057 (1,45) TYP.
with overtravel
.028 (0,71) TYP.
11.5 oz (456 g) TYP.
10.3 oz (282g) TYP.
N.C. with pretravel
N.C. with overtravel
SPST
Part number shown: 8533MZQE2
MOM. = Momentary
All models
with all options when ordered with G or Q contact material.
Third Angle
Projection
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
A-63
www.ckswitches.com
8500 Series
Subminiature Pushbutton Switches
PLUNGER COLOR
A
PLUNGER
M
.150” HIGH PLUNGER
ACTUATOR OR PLUNGER
Pushbutton
S
.210” HIGH PLUNGER
PANEL MOUNTING
OPTION
CODE
PLUNGER COLOR
BLACK
RED
2
3
NOTE:
One mounting nut and lockwasher supplied with all actuators (except T actuator: two nuts supplied).
CAP COLOR
ACTUATOR
T
ACTUATOR OR PLUNGER
15/32 BUSHING
PANEL MOUNTING
NOTE:
No frame color choice required.
OPTION
CODE
CAP COLOR
BLACK
WHITE
RED
GRAY
2
1
3
9
T1
15/32 BUSHING WITH FRAME
Cap Finish: gloss. Other colors available,
consult Customer Service Center.
One mounting nut and lockwasher
supplied with all actuators (except T
actuator: two nuts supplied).
NOTE:
No frame color choice required.
Available with 8532 and 8534 models only.
NOTE:
Caps available for plunger
options, see page A-65.
CAP COLOR
ACTUATOR—SNAP-IN FRONT MOUNT
J81
SNAP-IN WITH FRAME
ACTUATOR OR PLUNGER
FRAME COLOR
OPTION
CODE
CAP AND FRAME
COLOR
BLACK
2
Cap and Frame Finish: matte.
Other colors available,
consult Customer Service Center.
One mounting nut and lockwasher
supplied with all actuators.
NOTE:
Caps & frames available
separately, see pages A-65 and A-66.
J82
SNAP-IN WITH FRAME FOR LED
NOTE:
LED snaps
securely into frame.
Height depends on
LED used.
LED not included.
For LED information, see page A-66.
Third Angle
Projection
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
A-64
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8500 Series
Subminiature Pushbutton Switches
TERMINATIONS
Z
SOLDER LUG
C
A
PC THRU-HOLE
PC MOUNTING
Pushbutton
AV
RIGHT ANGLE, PC THRU-HOLE
Available with
DIM. "X"
NOTE:
Available with M or S plunger models, and B contact material only.
MODEL NO.
DIM “X”
8531, 8533
8532, 8534
0.550
0.438
CONTACT MATERIAL
OPTION
CODE
RoHS
COMPLIANT *
YES
YES
YES
RoHS
COMPATIBLE *
YES
YES
YES
TERMINAL
PLATING
GOLD
1
SILVER
4
CONTACT
MATERIAL
GOLD
LOW LEVEL/DRY CIRCUIT
RATINGS
B
Q
G
0.4 VA MAX. @ 20 V AC OR DC MAX.
853X MODELS: 1 AMP @ 120 V AC OR 28 V DC.
855X MODELS: 3 AMPS @ 120 V AC OR 28 V DC.
0.4 V MAX @20 V AC OR DC MAX. OR 853X MODELS: 1 AMP @
120 V AC OR 28 V DC. 855X MODELS: 3 AMPS @120 V AC OR 28 V DC.
SILVER
5
GOLD
3
POWER
LOW LEVEL/DRY
CIRCUIT OR POWER
GOLD OVER
SILVER
2
* Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications.
1
CONTACTS & TERMINALS: Copper alloy, with gold plate over nickel plate.
2
CONTACTS: Coin silver, with gold plate over nickel plate.
3
TERMINALS: Copper alloy, with gold plate over nickel plate.
4
CONTACTS: Coin silver, silver plated.
5
TERMINALS: Copper alloy, silver plated.
NOTE:
Any models supplied with Q, B or G contact material are RoHS compliant.
All models
with all options when ordered with G or Q contact material.
Q contact material standard with C, Z terminations.
8551 & 8552 available with Q contact material only.
SEAL
E
EPOXY SEAL
REPLACEMENT HARDWARE
Cap for 0.157” dia. plungers
.330 DIA.
(8,38)
.150 (3,81)
FOR 267A
.200 (5,08)
FOR 8931
PART NO.
PART NO.
WHITE
BLACK
RED
GRAY
.300
(7,62)
WHITE
BLACK
RED
GRAY
Cap, J80, J81 & J 82 options only
Frame
267A01000
267A02000
267A03000
267A09000
85X2T, 8534T
models only
Material: Nylon
Finish: Gloss
893101000
893102000
893103000
893109000
PART NO.
85X1T, 8532T1,
8533T, 8534T1 models only
Material: Nylon
Finish: Gloss
448901000
448902000
448903000
448909000
WHITE
BLACK
RED
GRAY
PART NO.
613302263
Material: Nylon
Finish: Matte
BLACK
Third Angle
Projection
Material: Nylon
Finish: Gloss or
matte
Other colors available, consult Customer Service Center.
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
A-65
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8500 Series
Subminiature Pushbutton Switches
A
AVAILABLE HARDWARE
Frame
Pushbutton
PART NO.
615602263
Material: Nylon
Finish: Matte
BLACK
NOTE:
Additional nuts, locking rings and lockwashers available separately, see section
“Technical Data and Additional Hardware”.
Other colors available, consult Customer Service Center.
Frames snap into panel opening and are independent from switch mounting. Accurate positioning of the PC
mounted switch relative to the panel opening is necessary to provide proper clearance between actuator and
frame. Available in two basic styles and four panel thicknesses .047-.125 in. Material: Nylon. Finish: Matte.
TYPICAL APPLICATION
.090” (2,29) PANEL THK.
PART NO.
.125” (3,18) PANEL THK.
PART NO.
432702263
432802263
BLACK
Panel Inserts
Above frames (part nos. 432XXXXXX) are also available with insert which accepts LED for
indicator light assembly. Order insert separately from frame. Blank insert panel (without hole
for LED) also available.
LED not included.
PANEL INSERT
WITH HOLE FOR LED
PART NO.
BLANK PANEL INSERT
WITHOUT HOLE FOR LED
PART NO.
894902000
476602000
BLACK
Special colors, custom markings available, consult Customer Service Center.
LED INFORMATION
Process Information:
Soldering to LED leads must be completed within 5 seconds
at 500ºF (260ºC) maximum.
LEDs are not supplied with J82 option. LED snaps into switch frame surrounding
actuator and is wired externally.
Flat denotes
cathode.
.200 DIA.
(5,08˘)
.025 SQ.
TYP. (0,63)
.230 DIA.
(5,84˘)
.030
(0,76)
.340
(8,64)
Suggested LED for J82 option.
Dimensions for reference only.
.750
(19,05)
Third Angle
Projection
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
A-66
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