ET Series
Sealed Subminiature Toggle Switches
Features/Benefits
Typical Applications
•
Sealed against solder and cleaning
process contaminants
•
•
•
Hand-held telecommunications
Instrumentation
•
•
•
ESD protection available
Medical equipment
Thru-hole and surface mount models
Compact size and small footprint
save PCB space
•
RoHS compliant models available
Models Available
Specifications
Materials
CONTACT RATING: B contact material: 0.4 VA max. @
20 V AC or DC max. See page F-35 for additional ratings.
CASE & BUSHING: Glass filled nylon 6/6, flame retardant, heat
stabilized (UL 94V-0) or glass filled 4/6 nylon, flame retardant, heat
stabilized (UL 94V-0). F1 conductive bushing option is impregnated
with carbon fibers.
ELECTRICAL LIFE: ETX1 models: 60,000 make-and-break cycles at
full load. All other models: 30,000 cycles.
ACTUATOR: M3 & S3 anti-static actuator: Nylon 4/6, black standard
(UL 94V-0). All other actuators: Brass, chrome plated. Internal
o-ring seal standard with all actuators.
CONTACT RESISTANCE: Below 20 m Ω typ. initial @ 2-4
V DC, 100 mA, for both silver and gold plated contacts.
9
INSULATION RESISTANCE: 10 Ω min.
SWITCH SUPPORT: Brass, tin plated.
ELECTROSTATIC DISCHARGE (ESD) RESISTANT OPTION:
M3 & S3 insulating actuator only: 9,000 V DC min. @ sea level,
actuator to terminals. F1 conductive bushing only: Dissipates
up to 20,000 V DC from actuator to ground. M3 & S3 actuator
and F1 bushing options are not recommended for use together.
CONTACTS & TERMINALS: B contact material: Copper alloy,
with gold plate over nickel plate. Q contact material: Copper
alloy, silver plated. See F-35 for additional contact materials.
TERMINAL SEAL: Epoxy.
DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 85ºC.
NOTE: Any models supplied with Q, B, G, P or R contact material are RoHS compliant
and compatible.
SOLDERABILITY: Per MIL-STD-202F method 208D, or
EIA RS-186E method 9 (1 hour steam aging).
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
DEGREE OF PROTECTION: IP57; Protection against harmful dust
deposit, full-scale voltage protection, temporary immersion.
PACKAGING: Surface mount switches are shipped in tape and reel
packaging, see page F-31 for drawings and reel information.
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 F–26 thru F–31. For additional options not shown in catalog, consult our Customer Service Center. All
models are process sealed to withstand machine soldering temperatures and pressure wash cleaning methods.
Switch Function
Actuator
ET01 SP, On-None-On
ET02 SPST, Off-None-On
ET03 SP, On-Off-On
ET05 SP, Mom.-Off-Mom.
ET07 SP, On-Off-Mom.
ET08 SP, On-None-Mom.
ET21 DP, On-None-On
ET23 DP, On-Off-On
M
.240" high
Bushing
M3 Plastic, anti-static,
D1 .177" High, Unthreaded
F1 .177" high, unthreaded, ESD conductive
.240" high
S
L
.400" high
.320" high
Terminations
A
Right angle, PC thru-hole
AV Vertical right angle, PC thru-hole
PC Thru-hole
S1 .540" high
C
ET24 DP, On-On-On
SA Right angle, surface mount
SA1 Right angle, surface mount rear-facing
V3 Vertical mount, V-bracket
AV3 Vertical right angle, snap-in, PC thru-hole
V31 Vertical mount, V-bracket, snap-in
ET25 DP, Mom.-Off-Mom.
ET27 DP, On-Off-Mom.
ET28 DP, On-None-Mom.
Contact Material
B
P
Q
S
G
R
Gold
Gold, matte tin
Silver
Silver/matte-tin
Gold over silver
Gold over silver,
matte-tin
W
Wire wrap
Seal
E
Epoxy
F
Plastic Actuator Color
NONE No actuator color
2
1
Black
White
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
www.ck-components.com
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