E020 Series
Sealed Snap-acting Momentary Pushbutton Switches
Features/Benefits
Typical Applications
A
•
Process sealed with disposable
splashproof boot
•
•
Instrumentation
Telecommunications and
networking equipment
•
•
•
Long life contact design
Snap-fitting plunger available
RoHS compliant models available
•
Computers and peripherals
Models Available
Specifications
Materials
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-26 for
additional ratings.
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 SUPPORT: Brass or steel, matte-tin.
SWITCH SUPPORT RETAINER: Stainless steel.
ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
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-26 for additional contact materials.
CONTACT RESISTANCE: Below 50 mΩ typ. initial @
2–4 V DC, 100 mA, for both silver and gold plated contacts.
9
INSULATION RESISTANCE: 10 Ω min.
DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –30ºC to 75ºC.
COMMON CONTACTS & ALL TERMINALS: Copper alloy, with
gold plate over nickel plate. See page A-26 for additional
contact materials.
CAP INSTALLATION FORCE: 10 lbs. max. permissible.
SOLDERABILITY: Per MIL-STD-202F method 208D, or
EIA RS-186E method 9 (1 hour steam aging).
TERMINAL SEAL: Epoxy.
DISPOSABLE BOOT: Vinyl splashproof boot supplied standard.
Remove and discard only after soldering and cleaning
processes are complete.
NOTE: Any models supplied with P, R, B or G contact material are RoHS compliant.
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-22 thru A-28. 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
E121 SPDT On-Mom. 1 Amp
E221 DPDT On-Mom. 1 Amp
E125 SPDT On-Mom. 0.4VA
E225 DPDT On-Mom. 0.4VA
Plunger
S
M
.282" high
.331" high, snap-fitting
Bushing
D1 Unthreaded
D3 .180" high, unthreaded
S1 .332" high
Terminations
A
Right angle, PC thru-hole
AV2 Vertical right angle, PC thru-hole
PC Thru-hole
Contact Material
B
G
P
R
Gold
C
Gold over silver
Gold, matte-tin
Gold over silver, matte-tin
A3 Right angle, snap-in, PC thru-hole
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
Seal
Epoxy and disposable
splashproof boot
V31 .460" high, snap-in V-bracket
V41 .630" high, snap-in V-bracket
V61 .460" high, snap-in V-bracket
E
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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