8500 Datasheet, PDF (1/5 Pages) ITT Industries – Subminiature Pushbutton Switches

8500 Series
Subminiature Pushbutton Switches
A
Features/Benefits
Typical Applications
• Pre-travel or over-travel models • Detection
available
• Ratings up to 3 AMPS
• Telecommunications and
networking equipment
• Reliable contact design
• Computers and peripherals
• RoHS compliant
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.
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.
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.
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
G Gold over silver
Seal
E Epoxy
D No epoxy seal
* Available with M or S plunger models, and B contact material only.
Cap or Plunger Color
2 Black
1 White
3 Red
9 Gray
Frame Color
2 Black
NONE Models without frame
A-62
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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