EP21SD1CBE【PDF 1/6 页】SWITCH PUSH DPST-NO 0.4VA 20V

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Sheet目录223

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EP Series

Sealed Tiny Pushbutton Switches

Features/Benefits

? Sealed against solder &

cleaning processes

? Thru-hole and surface mount models

? Snap-fitting actuator accepts

standard caps

? Tape & reel packaging available

? RoHS compliant models available

Models Available

Typical Applications

? Telecommunications and

networking equipment

? Computers and peripherals

? Instrumentation and controls

Specifications

CONTACT RATING: B contact material: 0.4 VA max. @

20 V AC or DC max. See page A-13 for additional ratings.

ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break

cycles at full load. EP12 models: 30,000 cycles.

CONTACT RESISTANCE: Below 20 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 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 standard in anti-static

tape and reel packaging per EIA 481-3, see page A-14 for

drawings and reel information. Tape and cover strip are

conductive for use near statically sensitive components,

Materials

CASE & BUSHING: High temperature material, glass filled nylon 4/6,

flame retardant, heat stabilized (UL 94V-0) on EP11 / EP12

models; glass filled nylon 6/6 on EP21.

PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0),

with internal o-ring seal. SA surface mount: High temperature

material, glass filled LCP (UL 94V-0).

SWITCH SUPPORT: Brass, matte-tin plated.

CONTACTS & TERMINALS: B contact material: Copper alloy,

with gold plate over nickel plate. See page A-13 for additional

contact materials.

TERMINAL SEAL: Epoxy.

NOTE: Any models supplied with Q, B, P, S, R 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.

CAUTION: PC mounting layouts and pads as shown are designed to be compatible with the

latest equipment and reflow techniques. Care should be taken in the design and location of

PC lands to suit individual needs. Orientation relative to reflow direction may significantly

impact solder joint integrity.

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-10 thru A-14. For additional options not shown in catalog, consult Customer Service Center. All

models are process sealed to withstand machine soldering temperatures and pressure wash cleaning methods.

Switch Function

EP11 SPST Off-Mom.

EP12 SPDT On-Mom.

EP21 DPST Off-Mom.

Plunger

S .215" high

S1 .110" high

S2 .465" high

FP Flush

R Snap-fitting, .215 high

Bushing

D1 Unthreaded

Terminations

Seal

E Epoxy

Right angle, PC thru-hole

PC Thru-hole

Contact Material

B Gold

AV Vertical right angle, PC thru-hole

AV3 Vertical right angle, snap-in, PC thru-hole

SA Right angle, surface mount

SA1 Right angle, surface mount rear facing

P Gold, matte-tin

Q Silver

S Silver, matte-tin

G Gold over silver

Vertical mount, v-bracket

R Gold over silver, matte tin

V31 Vertical mount, v-bracket, snap-in

(EP11 & EP12 only)

Wire wrap

Dimensions are shown: Inches (mm)

Specifications and dimensions subject to change

A-9

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