EP Series
Sealed Tiny Pushbutton Switches
Features/Benefits
Typical Applications
A
• Sealed against solder &
• Telecommunications and
cleaning processes
networking equipment
• Thru-hole and surface mount models
• Computers and peripherals
• Instrumentation and controls
• Snap-fitting actuator accepts
standard caps
• Tape & reel packaging available
• RoHS compliant models available
Models Available
Specifications
Materials
CONTACT RATING: B contact material: 0.4 VA max. @
CASE & BUSHING: High temperature material, glass filled nylon 4/6,
flame retardant, heat stabilized (UL 94V-0) on SMT models; glass
filled nylon 6/6 on PC Through Hole models.
20 V AC or DC max. See page A-13 for additional ratings.
ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break
cycles at full load. EP12 models: 30,000 cycles.
PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0),
with internal o-ring seal. SA surface mount: High temperature
material, glass filled LCP (UL 94V-0).
CONTACT RESISTANCE: Below 20 mΩ typ. initial @
2-4 V DC, 100 mA, for both silver and gold plated contacts.
9
SWITCH SUPPORT: Brass, matte-tin plated.
INSULATION RESISTANCE: 10 Ω min.
CONTACTS & TERMINALS: B contact material: Copper alloy,
with gold plate over nickel plate. See page A-13 for additional
contact materials.
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).
TERMINAL SEAL: Epoxy.
NOTE: Any models supplied with Q, B, P, S, R or G contact material are RoHS compliant.
DEGREE OF PROTECTION: IP57; Protection against harmful dust
deposit, full-scale voltage protection, temporary immersion.
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
PACKAGING: Surface mount switches standard in anti-static
tape and reel packaging per EIA 481-3, see page A-14 for
drawings and reel information. Tape and cover strip are
conductive for use near statically sensitive components,
consult Customer Service Center.
CAUTION: 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.
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-10 thru A-14. 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.
Switch Function
EP11 SPST Off-Mom.
EP12 SPDT On-Mom.
EP21 DPST Off-Mom.
Plunger
S
.215" high
S1 .110" high
S2 .465" high
FP Flush
Seal
Epoxy
R
Snap-fitting, .215 high
E
Bushing
D1 Unthreaded
Terminations
Contact Material
A
C
Right angle, PC thru-hole
PC Thru-hole
B
P
Q
S
G
R
Gold
Gold, matte-tin
Silver
Silver, matte-tin
Gold over silver
Gold over silver, matte tin
AV Vertical right angle, PC thru-hole
AV3 Vertical right angle, snap-in, PC thru-hole
SA Right angle, surface mount
SA1 Right angle, surface mount rear facing
V3 Vertical mount, v-bracket
V31 Vertical mount, v-bracket, snap-in
(EP11 & EP12 only)
W
Wire wrap
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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