A
Pushbutton
C&K E020 Series
Sealed Snap-acting Momentary Pushbutton Switches
Features/Benefits
• Process sealed with disposable
splashproof boot
• Long life contact design
• Snap-fitting plunger available
T
ypical Applications
• Instrumentation
• Telecommunications and
networking equipment
• Computers and peripherals
• RoHS compliant models available
Models Available
Specifications
CONTACT RATING: B contact material (EX25 Models): 0.4 VA max.
@ 20 V AC or DC max. G contact material (EX21 Models): 1 AMP
@120 V AC or 28 V DC or 0.4 VA max. @ 20 V AC or DC max.
Note: Break-before-make contacts. Multi-pole contacts
do not make and break simultaneously. See page A-24 for
additional ratings.
ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
CONTACT RESISTANCE: Below 50 mΩ typ. initial @
2–4 V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 10
DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 75ºC.
CAP INSTALLATION FORCE: 10 lbs. max. permissible.
SOLDERABILITY: Per MIL-STD-202F method 208D, or
EIA RS-186E method 9 (1 hour steam aging).
NOTE: Any models supplied with P, R, B or G contact material are RoHS compliant. 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.
9
min.
Ω
Materials
CASE & BUSHING: Glass filled nylon 6/6, flame retardant
(UL 94V-0).
PLUNGER: Glass filled nylon or glass filled polyester (PBT)
(UL 94V-0).
SWITCH SUPPOR
SWITCH SUPPORT RETAINER: Stainless steel.
N.O. & N.C. CONTACTS: EX25 MODELS: B contact material: Copper
alloy, with gold plate over nickel plate. EX21 MODELS: G contact
material: Coin silver, with gold plate over nickel plate. See page
A-28 for additional contact materials.
COMMON CONTACTS & ALL TERMINALS: Copper alloy, with
gold plate over nickel plate. See page A-24 for additional
contact materials.
TERMINAL SEAL: Epoxy.
DISPOSABLE BOOT: Vinyl splashproof boot supplied standard.
Remove and discard only after soldering and cleaning
processes are complete.
T: Brass or steel, matte-tin.
Build-A-Switch
o order, simply select desired option from each category and place in the appropriate box. Available options are shown
T
and described on pages A-20 thru A-26. For additional options not shown in catalog, consult our Customer Service Center.
All models ar
ocess sealed to withstand machine soldering temperatures and pressure wash cleaning methods.
e pr
Switch Function
E121 SPDT On-Mom.
E221 DPDT On-Mom. 1 Amp
E125 SPDT On-Mom. 0.4VA
E225 DPDT On-Mom. 0.4VA
Plunger
S .282" high
M .331" high, snap-fitting
S1 .332" high
1 Amp
Bushing
D1
Unthreaded
D3 .180" high, unthreaded
Terminations
A Right angle,
AV2 Vertical right angle, PC thru-hole
C PC Thru-hole
A3 Right angle,
AV3 Vertical right angle, snap-in, PC thru-hole
V3 .460" high, V-bracket
V4 .630" high, V-bracket
V6 .460" high, V-bracket
V8 .953" high, V-bracket
V31 .460" high,
V41 .630" high, snap-in V-bracket
V61 .460" high, snap-in V-bracket
PC thru-hole
p-in, PC thru-hole
sna
V
p-in
sna
A–19
-bracket
Contact Material
B Gold
K Gold, tin-lead
G Gold,
P Gold over silver
L Gold over silver, tin-lead
R Gold over silver, matte-tin
Seal
E Epoxy and disposable
tte-tin
ma
splashproof boot
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
Third Angle
Projection
A
Pushbutton
C&K E020 Series
Sealed Snap-acting Momentary Pushbutton Switches
SWITCH FUNCTION
NO.
POLES
SP
MODEL
E121
NO.
E125
SPDT
Part number shown: E121SD1CGE
E221
DP
E225
DPDT
SWITCH FUNCTION
POS. 1 POS. 2
C&K marking this side C&K marking this side
ON
ON
ON
ON
MOM.
MOM.
MOM.
MOM.
CONNECTED TERMINALS
POS. 1 POS. 2
SCHEMATIC
1-21-3
SPDT
Terminal Nos.
For Reference Only
1-2,4-51-3,4-6
DPDT
Part number shown: E221SD1CBE
MOM. = Momentary
E121, E221 models with all options
when ordered with G, L or R contact material.
EX25 models must be ordered with B, K or P contact material.
EX21 models must be ordered with G, L or R contact material.
Terminal Nos.
For Reference Only
PLUNGER
S .282" HIGH
S1 .332" HIGH M .332" HIGH SNAP-FITTING
Not Available with D1 bushing.
NOTE: Caps available for all plunger options, see page A-25.
BUSHING
D1 UNTHREADED D3 .180" HIGH UNTHREADED
Not available with S1 actuator.
NOTE: Disposable splashproof vinyl over actuator and bushing supplied std., see page A-24.
A–24
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
Third Angle
Projection
A
Pushbutton
Sealed Snap-acting Momentary Pushbutton Switches
PC MOUNTING
PC MOUNTING
SECTION A-A
SECTION A-A
PC MOUNTING
C PC THRU-HOLE
SPDT and DPDT
A RIGHT ANGLE, PC THRU-HOLE
C&K E020 Series
TERMINATIONS
A3 RIGHT ANGLE, SNAP-IN, PC THRU-HOLE
NOTE: Terminal bend radii and lead-in manufacturing option.
A RIGHT ANGLE, PC THRU-HOLE
E121SD1AGE
SPDT
E221SD1AGE
DPDT
A3 RIGHT ANGLE, SNAP-IN, PC THRU-HOLE
NOTE: Terminal bend radii and lead-in manufacturing option.
A–21
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
Third Angle
Projection
C&K E020 Series
SECTION A-A
SECTION A-A
PC MOUNTING
PC MOUNTING
A
Pushbutton
Sealed Snap-acting Momentary Pushbutton Switches
TERMINATIONS
A
VERTICAL RIGHT ANGLE, PC THRU-HOLE,
V2
.150" PITCH
E121SD1AV2GE
SPDT
AV3 VERTICAL RIGHT ANGLE, SNAP-IN, PC THRU-HOLE,
.150" PITCH
NOTE: Terminal bend radii and lead-in manufacturing option.
AV2 VERTICAL RIGHT ANGLE, PC THRU-HOLE,
.150" PITCH
E221SD1AV2GE
DPDT
AV3 VERTICAL RIGHT ANGLE, SNAP-IN, PC THRU-HOLE,
.150" PITCH
NOTE: T
erminal bend radii and lead-in manufacturing option.
A–22
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
Third Angle
Projection
Sealed Snap-acting Momentary Pushbutton Switches
SNAP-IN
Dim 'A'
PC MOUNTING
SNAP-IN
Dim 'A'
PC MOUNTING
1C2NO3
NC
(0,76) (1,27)
.030 X .050 TYP.
.122 DIA.
.185
(4,70)
DIM ’A’
.250
(6,35)
.360
(9,14)
.192
(4,88)
.180
(4,57)
.020 TYP.
(0,51)
.185 TYP.
(4,70)
.750
(19,05)
.050
(1,27)
.060 MAX.
(1,53)
C&K MARKING ON
OPPOSITE SIDE
PC MOUNTING
A
Pushbutton
TERMINATIONS
V3, V4 VERTICAL MOUNT, V-BRACKET
V31, V41 VERTICAL MOUNT, V-BRACKET, SNAP-IN
C&K E020 Series
E121SD3__GE
SPDT
V3, V4 VERTICAL MOUNT, V-BRACKET
V31, V41 VERTICAL MOUNT, V-BRACKET, SNAP-IN
OPTION
CODE
DIM ‘A’
V3, V31 .460 (11,68)
V4, V41 .630 (16,00)
E221SD3__GE
DPDT
OPTION
CODE
V3, V31 .460 (11,68)
V4, V41 .630 (16,00)
DIM ‘A’
V6, V8 VER
V61, V81 VER
TICAL MOUNT
, V-BRACKET
TICAL MOUNT, V-BRACKET, SNAP-IN
A–23
E121SD3V__GE
SPDT
OPTION
CODE
V6, V61 .460 (11,68)
V8, V81 .953 (24,21)
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
DIM ‘A’
.ittcannon.com
Third Angle
Projection
C&K E020 Series
Disposable splashproof boot supplied standard.
Remove and discard boot
only after
soldering and
cleaning processes are complete.
Dim 'A
'
SNAP-IN
PC MOUNTING
A
Pushbutton
Sealed Snap-acting Momentary Pushbutton Switches
TERMINATIONS
V6, V8 VERTICAL MOUNT, V-BRACKET
V61, V81 VERTICAL MOUNT, V-BRACKET, SNAP-IN
E221SD3V6GE
DPDT
CONTACT MATERIAL
OPTION
CODE
B
K
P
G
L
R
* Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications.
1
CONTACTS & TERMINALS: Copper alloy, with gold plate over nickel plate.
2
N.O. AND N.C. CONTACTS: Coin silver, with gold plate over nickel plate.
3
COMMON CONT
over nickel plate.
4
TERMINALS: Copper alloy, with tin-lead alloy over nickel plate.
5
TERMINALS: Copper alloy
RoHS
COMPLIANT *
YES
NO
YES
YES
NO
YES
ACTS & ALL TERMINALS: Copper alloy
RoHS
COMPATIBLE *
YES
YES
YES
YES
YES
YES
, with matte-tin alloy over nickel plate.
CONTACT
MATERIAL
GOLD
GOLD OVER
SILVER
, with gold plate
TERMINAL
PLATING RATINGS
1
GOLD
TIN-LEAD
GOLD
TIN-LEAD
4
5
3
4
5
1
MATTE-TIN
2,3
MATTE-TIN
LOW LEVEL/DRY CIRCUIT
LOW LEVEL/DRY CIRCUIT OR POWER
NOTE: Any models supplied with P, R, B or G contact material are RoHS compliant. For the
latest information r
E121, E221 models with all options when ordered with mandatory
G, R or L contact material.
P, B or K contact material must be ordered with EX25 models.
R, G or L contact material must be ordered with EX21 models.
egar
EX25 MODELS ONLY: 0.4 VA MAX.
@ 20 V AC OR DC MAX.
EX21 MODELS ONLY: 0.4 VA MAX @ 20 V AC OR
DC MAX. OR 1 AMP @ 120 V AC OR 28 V DC.
ding RoHS compliance, please go to: www
OPTION
CODE
DIM ‘A’
V6, V61 .460 (11,68)
V8, V81 .953 (24,21)
.ittcannon.com/r
ohs.
E EPOXY SEAL AND DISPOSABLE SPLASHPROOF BOOT
SEAL
A–24
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
Third Angle
Projection
C&K E020 Series
TYPICAL APPLICATION
A
Pushbutton
.200 DIA.
(5,08 )
.120
(3,05)
.155
(3,94)
Sealed Snap-acting Momentary Pushbutton Switches
AVAILABLE HARDWARE
Cap
PART NO.
708901000 WHITE
708902000 BLACK
708903000 RED
Material: Nylon
Finish: Gloss
Cap, Snap-fitting plunger
Cap
PART NO.
752701000 WHITE
752702000 BLACK
752703000 RED
Material: Nylon
Finish: Gloss
Cap, Snap-fitting plunger
Cap
PART NO.
801801000 WHITE
801802000 BLACK
801803000 RED
Material: Nylon
Finish: Gloss
Cap
PART NO.
894001000 WHITE
894002000 BLACK
894003000 RED
Material: Nylon
Finish: Gloss
NOTE: Other cap colors available, consult Customer Service Center.
Frames snap into panel opening and ar
mounted switch r
elative to the panel opening is necessary to provide proper clearance between actuator and
e independent fr
PART NO.
894101000 WHITE
894102000 BLACK
894103000 RED
Material: Nylon
Finish: Gloss
om switch mounting. Accurate positioning of the PC
PART NO.
484601000 WHITE
484602000 BLACK
484603000 RED
Material: Nylon
Finish: Gloss
frame. Available in two basic styles and four panel thicknesses .047-.125 in. Material: Nylon. Finish: Matte.
.047" (1,19) PANEL THK.
PART NO.
432501000
432502263
432503000
.062" (1,57) PANEL THK.
PART NO.
432601000
432602263
432603000
.090" (2,29) PANEL THK.
PART NO.
432701000
432702263
432703000
PART NO.
798201000 WHITE
798202263 BLACK
798203000 RED
Material: Nylon
Finish: Matte
.125" (3,18) PANEL THK.
PART NO.
432801000 WHITE
432802263 BLACK
432803000 RED
A–25
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
C&K E020 Series
Third Angle
Projection
A
Pushbutton
Sealed Snap-acting Momentary Pushbutton Switches
AVAILABLE HARDWARE
PANEL INSERTS
Above frames (part nos. 432XXXXXX) are also available with insert which accepts LED for
indicator light assembly. Order insert separately from frame. Blank insert panel (without hole
for LED) also available. LED not included.
PANEL INSERT
WITH HOLE FOR LED
PART NO.
894901000
894902000
894903000
Special colors, custom markings available, consult Customer Service Center.
BLANK PANEL INSERT
WITHOUT HOLE FOR LED
PART NO.
476601000 WHITE
476602000 BLACK
476603000 RED
A–26
Specifications and dimensions subject to change
Dimensions are shown: Inches (mm)
www
.ittcannon.com
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