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E020 Series
Sealed Snap-acting Momentary Pushbutton Switches
Features/Benefits
? Process sealed with disposable
splashproof boot
? Long life contact design
? Snap-fitting plunger available
? RoHS compliant models available
Models Available
Typical Applications
? Instrumentation
? Telecommunications and
networking equipment
? Computers and peripherals
A
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-26 for
additional ratings.
ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
CONTACT RESISTANCE: Below 50 m ? typ. initial @
2–4 V DC, 100 mA, for both silver and gold plated contacts.
INSULATION RESISTANCE: 109 ? min.
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.
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 SUPPORT: Brass or steel, matte-tin.
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-26 for additional contact materials.
COMMON CONTACTS & ALL TERMINALS: Copper alloy, with
gold plate over nickel plate. See page A-26 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.
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
.282" high
M .331" high, snap-fitting
S1 .332" high
Bushing
D1 Unthreaded
D3 .180" high, unthreaded
Terminations
A Right angle, PC thru-hole
AV2 Vertical right angle, PC thru-hole
C PC Thru-hole
A3 Right angle, snap-in, PC thru-hole
AV3 Vertical right angle, snap-in, PC thru-hole
V3 .460" high, V-bracket
Contact Material
B Gold
G Gold over silver
P Gold, matte-tin
R Gold over silver, matte-tin
V4
V6
.630" high, V-bracket
.460" high, V-bracket
V8 .953" high, V-bracket
V31 .460" high, snap-in V-bracket
V41 .630" high, snap-in V-bracket
V61 .460" high, snap-in V-bracket
A-21
Seal
E Epoxy and disposable
splashproof boot
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
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相关代理商/技术参数
785A03000
功能描述:开关配件 PUSHBUTTON SWITCH CAP T/R RoHS:否 制造商:C&K Components 类型:Cap 用于:Pushbutton Switches 设计目的:
785-B
功能描述:塑料硬件 .440 DIA .200 H DOME BLACK ADH BUMPER RoHS:否 制造商:3M Electronic Specialty 类型:Cylindrical Bumpers
785-C
功能描述:安装硬件 .440 DIA .200 H DOME CLR ADH BUMPER RoHS:否 制造商:Harwin 类型:SMT Cable Clip 材料:Phosphor Bronze 安装孔大小: 长度:5 mm 外径: 内径: 厚度: 电镀:Tin 螺纹大小:
785C-DISC-4-1/2X7/8-60
制造商:3M Electronic Products Division 功能描述:60440206526 25 PER PKG, 100 PER CASE
785C-DISC-5INX7/8IN-60
制造商:3M Electronic Products Division 功能描述:60440206534
785C-DISC-7INX7/8IN-50
制造商:3M Electronic Products Division 功能描述:60440206237
785RT
制造商:Littelfuse 功能描述:
785XBXC-120A
功能描述:通用继电器 Mag Latch Sqr Base Relay / DPDT, 16A
RoHS:否 制造商:Omron Electronics 触点形式:1 Form A (SPST-NO) 触点电流额定值:150 A 线圈电压:24 VDC 线圈电阻:144 Ohms 线圈电流:167 mA 切换电压:400 V 安装风格:Chassis 触点材料: