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
Typical Applications
•
Hand-held telecommunications
•
Instrumentation
•
Medical equipment
•
RoHS compliant models available
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 Ω typ. initial @ 2-4
V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109 Ω 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
deposit, full-scale voltage protection, temporary immersion.
PACKAGING: Surface mount switches are shipped in tape and reel
packaging, see page F-36 for drawings and reel information.
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.
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–31 thru F–36. 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
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.
Actuator
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
Contact Material
AV3
Vertical right angle, snap-in, PC thru-hole
B
Gold
V31
Vertical mount, V-bracket, snap-in
P
Gold, matte tin
W
Wire wrap
Q
Silver
S
Silver/matte-tin
G
Gold over silver
R
Gold over silver,
matte-tin
F
Seal
E
Epoxy
Plastic Actuator Color
NONE No
actuator color
2
Black
1
White
Toggle
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–30
www.ckswitches.com
ET Series
Sealed Subminiature Toggle Switches
SWITCH FUNCTION
SWITCH FUNCTION
POS. 1
POS. 2
POS. 3
POS. 1
CONNECTED TERMINALS
POS. 2
POS. 3
NO.
POLES
MODEL
NO.
C&K marking on opposite side
ON
ON
MOM.
ON
ON
OFF
NONE
OFF
OFF
OFF
NONE
NONE
ON
ON
MOM.
MOM.
MOM.
ON
2-3
OPEN
2-3
2-3
C&K marking on opposite side
N/A
2-1
SCHEMATIC
ET01
ET03
SP
ET05
ET07
ET08
ET02
OPEN
2-1
N/A
N/A
2-1
3-1
SPDT
SPST
SPDT
Terminal Nos.
For Reference Only
Part number shown: ET01MD1CBE
ET02 Models: Omit terminal 2
ET21
ET23
DP
ON
ON
MOM.
ON
ON
ON
NONE
OFF
OFF
OFF
NONE
ON
ON
ON
MOM.
MOM.
MOM.
ON
2-3,5-6
N/A
2-1,5-4
ET25
ET27
ET28
ET24**
2-3,5-6
OPEN
2-1,5-4
2-3,5-6
2-3,5-6
N/A
2-3,5-4
2-1,5-4
2-1,5-4
DPDT
DPDT
Part number shown: ET21MD1CBE
Terminal
Nos.
For Reference Only
MOM. = Momentary
All models
with all options (except M3 actuator) when ordered with G, L, R or Q contact material except
with F1 conductive bushing.
** Wiring for 3-way switch, see Section N.
F
Toggle
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–31
www.ckswitches.com
ET Series
Sealed Subminiature Toggle Switches
ACTUATOR COLOR
ACTUATOR
M
.240” HIGH
M3
PLASTIC, ANTISTATIC,
.240” HIGH
S
.400” HIGH
L
.320” HIGH
Standard with A, AV, V3 & V31 terminations.
S1
.540” HIGH
Material: Nylon 4/6 (UL 94V-0), black stan-
dard. Static resistance: 9,000 V DC min. @
sea level, actuator to terminals. Not available
with F1 conductive bushing option. Not UL
approved.
Standard with C or W terminations.
OPTION
CODE
PLASTIC
ACTUATOR COLOR
BLACK (M3 & S3 only)
WHITE (M3 & S3 only)
(NONE)
1
NOTE:
All actuators have chrome finish (except M3 & S3 ).
BUSHING
D1
.177” HIGH, UNTHREADED
F1
ESD, CONDUCTIVE BUSHING
UNTHREADED, .177” HIGH
F1 bushing is not UL approved
NOTE:
ESD protection depends on proper grounding of switch support bracket. F1 conductive bushing option is
impregnated with carbon fibers; dissipates electrostatic discharge (ESD) up to 20,000 V from actuator to ground.
Available with all metal actuator options and A, AV, AV3, V3 and V31 termination options only.
Internal actuator o-ring seal standard.
TERMINATIONS
C
PC THRU-HOLE
SP
DP
W
WIRE WRAP
SP
DP
PC MOUNTING
SP
ET02 – omit center hole.
DP
F
Toggle
Not available with F1 conductive bushing.
SP and DP
Not available with F1 conductive bushing.
SP and DP
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–32
www.ckswitches.com
ET Series
Sealed Subminiature Toggle Switches
TERMINATIONS
A
RIGHT ANGLE, PC THRU-HOLE
PC MOUNTING
ET01MD1ABE
Horizontal Actuation
SPDT
Not available with ET02 model.
Actuator Shown In Pos. 1
A
RIGHT ANGLE, PC THRU-HOLE
PC MOUNTING
ET21MD1ABE
Horizontal Actuation
DPDT
Actuator Shown In Pos. 1
AV
VERTICAL RIGHT ANGLE, PC THRU-HOLE
PC MOUNTING
ET01MD1AVBE
Vertical Actuation
Actuator Shown In Pos. 1
SPDT
ET02 - omit terminal 2.
NOTE:
Terminal bend radii and lead-in manufacturing option.
AV
VERTICAL RIGHT ANGLE, PC THRU-HOLE
PC MOUNTING
F
Toggle
ET21MD1AVBE
Vertical Actuation
DPDT
Actuator Shown In Pos. 1
NOTE:
Terminal bend radii and lead-in manufacturing option.
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–33
www.ckswitches.com
ET Series
Sealed Subminiature Toggle Switches
TERMINATIONS
AV3
VERTICAL RIGHT ANGLE, SNAP-IN, PC THRU-HOLE
PC MOUNTING
ET01SD1AV2BE
Actuator Shown In Pos. 1
Vertical Actuation
SPDT
SA
RIGHT ANGLE, SURFACE MOUNT
PC MOUNTING
ET01M3D1SAPE
Actuator Shown
In Pos. 1
Horizontal Actuation
SPDT Only
Not available with S and S1 actuators. Standard with tape & reel packaging, See page F-36.
SA1
RIGHT ANGLE, SURFACE MOUNT
.276
(7,0)
.041
(1,04)
ø.181
(4,60)
ø.099
(2,51Ø)
.272
(6,90)
.403
(10,24)
.032 TYP.
(0,80)
.200
(5,08)
.059
(1,50)
.059
(1,50)
.403
(10,24)
.051
(1,30)
.121
(3,07)
.217
(5,51)
.234
(5,94)
.171
(4,35)
.071 TYP.
(1,80)
.354
(9,00)
EPOXY SEAL
.020 TYP
(0,51)
.100
(2,54)
.079 TYP.
(2,0)
ET01M3D1SA1BE
Horizontal Actuation
Not available in ET02 .
Actuators M and M3, bushing D1, contact material B.
Standard with tape and reel packaging-see page F-36.
SPDT Only
V3
VERTICAL MOUNT, V-BRACKET
V31
VERTICAL MOUNT, V-BRACKET, SNAP-IN
PC MOUNTING
F
V31 Snap-In
ET02 Models: Omit center hole.
ET01MD1V3BE
Toggle
SPDT
Actuator Shown In Pos. 1
ET02 Models: Omit terminal 2
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
F–34
www.ckswitches.com
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