C&K 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
Typical Applications
•
Hand-held telecommunications
•
Instrumentation
•
Medical equipment
Models Available
Specifications
CONTACT RATING: B contact material: 0.4 VA max. @
20 V AC or DC max. See page F-32 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 G-35 for drawings and reel information.
Materials
CASE & BUSHING: Glass filled nylon 6/6, flame retardant, heat
stabilized (UL 94V-0). SA surface mount: High temperature
material, 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 G-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. For the latest information regarding RoHS compliance, please go to:
www.ittcannon.com/rohs.
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 G–31 thru G–35. 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
AV3
Vertical right angle, snap-in, PC thru-hole
V31
Vertical mount, V-bracket, snap-in
Contact Material
W
Wire wrap
B
Gold
K
Gold, tin-lead
P
Gold, matte tin
Q
Silver
G
Gold over silver
L
Gold over silver,
tin-lead
R
Gold over silver,
matte-tin
G
Toggle
Seal
E
Epoxy
Plastic Actuator Color
NONE
No actuator color
2
Black
1
White
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
G–30
www.ittcannon.com
C&K ET Series
Sealed Subminiature Toggle Switches
SWITCH FUNCTION
SWITCH FUNCTION
POS. 1
POS. 2
POS. 3
CONNECTED TERMINALS
POS. 2
POS. 1
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
ET05
SP
OPEN
2-1
ET07
ET08
ET02
SPDT
N/A
N/A
2-1
3-1
SPDT
SPST
Terminal Nos.
For Reference Only
Part number shown: ET01MD1CBE
ET02 Models: Omit terminal 2
ET21
ET23
ET25
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
2-3,5-6
OPEN
2-1,5-4
ET27
ET28
ET24**
DPDT
2-3,5-6
2-3,5-6
N/A
2-3,5-4
2-1,5-4
2-1,5-4
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 O.
G
Toggle
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
G–31
www.ittcannon.com
C&K 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.
Material: Nylon 4/6 (UL 94V-0), black standard.
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.
S1
.540" HIGH
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
F1
.177" HIGH, UNTHREADED
ESD, CONDUCTIVE BUSHING
UNTHREADED, .177" HIGH
F1 bushing is not UL/CSA 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
G
Toggle
Not available with F1 conductive bushing.
Not available with F1 conductive bushing.
SP and DP
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
G–32
www.ittcannon.com
C&K 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
G
Toggle
ET21MD1AVBE
Vertical Actuation
DPDT
Actuator Shown In Pos. 1
NOTE:
Terminal bend radii and lead-in manufacturing option.
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
G–33
www.ittcannon.com
C&K ET Series
Sealed Subminiature Toggle Switches
TERMINATIONS
AV3
VERTICAL RIGHT ANGLE, SNAP-IN, PC THRU-HOLE
PC MOUNTING
ET01SD1AV2BE
Vertical Actuation
Actuator Shown In Pos. 1
SPDT
SA
RIGHT ANGLE, SURFACE MOUNT
PC MOUNTING
SMT
Actuator Shown
In Pos. 1
ET01M3D1SAKE
Horizontal Actuation
SPDT Only
Not available with S and S1 actuators. Standard with tape & reel packaging, See page G-35.
SA1
RIGHT ANGLE, SURFACE MOUNT
SMT
ETA01M3D1SA1BE
Horizontal Actuation
Only available with switch functions ET01, ET02 and ET03.
Actuators M and M3, bushing D1, contact material B.
Standard with tape and reel packaging-see page G-36
SPDT Only
V3
V31
VERTICAL MOUNT, V-BRACKET
VERTICAL MOUNT, V-BRACKET, SNAP-IN
PC MOUNTING
G
V31 Snap-In
ET02 Models: Omit center hole.
Toggle
ET01MD1V3BE
SPDT
Actuator Shown In Pos. 1
ET02 Models: Omit terminal 2
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
G–34
www.ittcannon.com
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