C&K 8020 Series
Snap-acting Momentary Pushbutton Switches
Features/Benefits
Typical Applications
A
• Positive tactile feel
• Instrumentation
• Multi-positions available
• Wide variety of termination options
• Computer peripherals
• Telecommunications equipment
• Epoxy terminal seal compatible with
bottom wash cleaning
• RoHS complient models available
Models Available
Specifications
Materials
CONTACT RATING: B contact material (8X25 Models): 0.4 VA max.
@ 20 V AC or DC maximum. G contact material (8X21, U8X1
Models): 1 AMP @ 120 V AC or 28 V DC or 0.4 VA max. @ 20 V
AC or DC max. Note: Break-before-makecontacts. Multi-pole
contacts do not make and break simultaneously. See page A-41
for additional ratings.
CASE: Glass filled nylon 6/6 or diallyl phthalate (DAP),
flame retardant (UL 94V-0).
PLUNGER: Glass filled nylon or glass filled polyester (PBT) (UL 94V-0).
CAP & FRAME: Nylon, black, standard.
BUSHING: Brass or zinc, nickel plated.
ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
HOUSING: Stainless steel.
CONTACT RESISTANCE: Below 50 mΩ typ. initial @
SWITCH SUPPORT: Brass or steel, matte-tin plated.
2-4 V DC, 100 mA, for both silver and gold plated contacts.
9
INSULATION RESISTANCE: 10 Ω min.
N.O. & N.C. CONTACTS: 8X21, U8X1 MODELS: G contact material:
Coin silver, with gold plate over nickel plate. See page A-41 for
additional contact materials.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: 8X2X MODELS: –30ºC to 75ºC.
U8X1 MODELS: –30ºC to 65ºC.
8X25 MODELS: B contact material: Copper alloy, with gold plate
over nickel plate. See page A-41 for additional contact materials.
CAP INSTALLATION FORCE: 10 lbs. max. permissible.
COMMON CONTACT & ALL TERMINALS: Copper alloy, with gold
plate over nickel plate.
SOLDERABILITY: Per MIL-STD-202F method 208D, or EIA RS-186E
method 9 (1 hour steam aging).
TERMINAL SEAL: Epoxy. Refer to slodering and cleaning
Technical Data Chapter.
NOTE: Any models supplied with B, P, R, or G contact material are RoHS compliant. For
the latest information regarding RoHS compliance, please go to: www.ittcannon.com/rohs.
HARDWARE: Nut & Locking Ring: Brass, nickel plated;
Lockwasher: Steel, nickel plated.
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 A-28 thru A-43. For additional options not shown in catalog, consult Customer Service Center. All
models have epoxy terminal seal and are compatible with all “bottom-wash” PCB cleaning methods.
Switch Function
Bushing
D9 .280" high, keyway
Contact Material
B Gold
8121 SPDT On-Mom. 1 Amp
8125 SPDT On-Mom. 0.4VA
8221 DPDT On-Mom. 1 Amp
8225 DPDT On-Mom. 0.4VA
8321 3PDT On-Mom. 1 Amp
8325 3PDT On-Mom. 0.4VA
8421 4PDT On-Mom. 1 Amp
8425 4PDT On-Mom. 0.4VA
Frame Color
2 Black
NONE Models
H
.250" high, flat
K Gold, tin-lead
P Gold, matte-tin
G Gold over silver
L Gold over silver, tin-lead
R Gold over silver,
matte-tin
Actuator or Plunger
Plunger
NONE Snap-in
NONE No bushing
S
choice required
without frame
D
.280" high, keyway
1
3
5
6
9
White
Red
Yellow
Green
Gray
J80 Snap-in
D2 .288" high, flat
D3 .180" high
D8 .288" high, flat
H9 .250" high, flat, hi torque
J81 Snap-in w/frame
J82 Snap-in w/frame for LED
J83 Snap-in w/frame &
flush cap
J84 Snap-in w/frame for LED,
flush cap
Seal
E Epoxy
Note: UL/CSA models
available, see page A-28
and A-29.
Y
.350" high, keyway
I
Epoxy potted
base
LED Color
Y3 6.35mm high,
3
Red
Cap Color
keyway, hi torque
Y4 .378" high, flat, hi torque
Y9 .350" high, keyway
J85 Snap-in w/frame & LED
J95 PC w/V-bracket & LED
NONE Models
2
Black
4
5
6
7
9
Orange
Yellow
Green
Blue
without LED
NONE Models
L
Plunger
5
6
Yellow
Green
without caps
M
Snap-fitting plunger
1
3
White
Red
Gray
Terminations
A4 Right angle, PC thru-hole, reversed terminals V2 .555" high, V-bracket V31 .460" high, snap-in V-bracket
A
Right angle, PC thru-hole
A6 Right angle, PC thru-hole
V3 .460" high, V-bracket V61 .460" high, snap-in V-bracket
V4 .630" high, V-bracket .750" long, wire wrap
V6 .460" high, V-bracket W1 .964" long, wire wrap
V7 .630" high, V-bracket W3 .425" long, wire wrap
V8 .953" high, V-bracket W4 1.062" long, wire wrap
V9 1.150" high, V-bracket Z3 Quick connect
AV2 Vertical right angle, PC thru-hole
C
Z
A2 Right angle, PC thru-hole
A3 Right angle, snap-in, PC thru-hole
AV Vertical right angle, PC thru-hole
AV1Vertical right angle, PC thru-hole
AV3 Vertical right angle, snap-in, PC thru-hole
W
PC Thru-hole
Solder lug
R
Right angle with PCB
R2 Right angle with PCB, reversed terminals
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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