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ET Series
Sealed Subminiature Toggle Switches
Features/Benefits
? Sealed against solder and cleaning
process contaminants
? ESD protection available
? Thru-hole and surface mount models
? Compact size and small footprint
save PCB space
? RoHS compliant models available
Models Available
Typical Applications
? Hand-held telecommunications
? Instrumentation
? Medical equipment
Specifications
CONTACT RATING: B contact material: 0.4 VA max. @
20 V AC or DC max. See page F-35 for additional ratings.
ELECTRICAL LIFE: ETX1 models: 60,000 make-and-break cycles at
full load. All other models: 30,000 cycles.
CONTACT RESISTANCE: Below 20 m ? typ. initial @ 2-4
V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109 ? min.
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.
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
Materials
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.
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.
SWITCH SUPPORT: Brass, tin plated.
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.
NOTE: Any models supplied with Q, B, G, P or R contact material are RoHS compliant
and compatible.
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
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
ET01 SP, On-None-On
Actuator
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
ET24 DP, On-On-On
ET25 DP, Mom.-Off-Mom.
ET27 DP, On-Off-Mom.
ET28 DP, On-None-Mom.
M .240" high
M3 Plastic, anti-static,
.240" high
S .400" high
L .320" high
S1 .540" high
Bushing
D1 .177" High, Unthreaded
F1 .177" high, unthreaded, ESD conductive
Terminations
A Right angle, PC thru-hole
AV Vertical right angle, PC thru-hole
C PC Thru-hole
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
W Wire wrap
Contact Material
B Gold
P Gold, matte tin
Q Silver
S Silver/matte-tin
G Gold over silver
Seal
E Epoxy
F
R Gold over silver,
matte-tin
Plastic Actuator Color
NONE No actuator color
2 Black
1 White
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–25
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