C&K EP Series
Sealed Tiny Pushbutton Switches
Sealed against solder &
Thru-hole and surface mount models
Snap-fitting actuator accepts
Tape & reel packaging available
Computers and peripherals
Instrumentation and controls
RoHS compliant models available
CONTACT RATING: B contact material: 0.4 VA max. @
20 V AC or DC max. See page A-11 for additional ratings.
ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break
cycles at full load. EP12 models: 30,000 cycles.
CONTACT RESISTANCE: Below 20 mΩ typ. initial @
2-4 V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109
DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 85ºC.
SOLDERABILITY: Per MIL-STD-202F method 208D, or
EIA RS-186E method 9 (1 hour steam aging).
DEGREE OF PROTECTION: IP57; Protection against harmful dust
deposit, full-scale voltage protection, temporary immersion.
PACKAGING: Surface mount switches standard in anti-static
tape and reel packaging per EIA 481-3, see page A-12 for
drawings and reel information. Tape and cover strip are
conductive for use near statically sensitive components,
consult Customer Service Center.
CASE & BUSHING: Glass filled nylon 6/6, flame retardant, heat
stabilized (UL 94V-0). SA surface mount: High temperature
material, glass filled nylon 4/6, flame retardant, heat
stabilized (UL 94V-0).
PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0),
with internal o-ring seal. SA surface mount: High temperature
material, glass filled nylon 4/6, flame retardant, heat stabilized
SWITCH SUPPORT: Brass, matte-tin plated.
CONTACTS & TERMINALS: B contact material: Copper alloy,
with gold plate over nickel plate. See page A-11 for additional
TERMINAL SEAL: Epoxy.
Any models supplied with Q, B, P, S, R or G contact material are RoHS compliant. For
the latest information regarding RoHS compliance, please go to: www.ittcannon.com/rohs.
Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
PC mounting layouts and pads as shown are designed to be compatible with the
latest equipment and reflow techniques. Care should be taken in the design and location of
PC lands to suit individual needs. Orientation relative to reflow direction may significantly
impact solder joint integrity.
To order, simply select desired option from each category and place in the appropriate box. Available options are shown
and described on pages A-8 thru A-11. For additional options not shown in catalog, consult Customer Service Center. All
models are process sealed to withstand machine soldering temperatures and pressure wash cleaning methods.
Snap-fitting, .215 high
Right angle, PC thru-hole
Vertical right angle, PC thru-hole
Vertical right angle, snap-in, PC thru-hole
Right angle, surface mount
Right angle, surface mount rear facing
Vertical mount, v-bracket
Vertical mount, v-bracket, snap-in
(EP11 & EP12 only)
Gold over silver
Gold over silver, tin-lead
Gold over silver, matte tin
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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