Pushbutton EP Series Sealed Tiny Pushbutton Switches Features/Benefits Typical Applications A • Sealed against solder & • Telecommunications and cleaning processes networking equipment • Thru-hole and surface mount models • Computers and peripherals • Snap-fitting actuator accepts • Instrumentation and controls standard caps • Tape & reel packaging available • RoHS compliant models available Models Available Specifications Materials CONTACT RATING: B contact material: 0.4 VA max. @ CASE & BUSHING: High temperature material, glass filled nylon 4/6, 20 V AC or DC max. See page A-13 for additional ratings. flame retardant, heat stabilized (UL 94V-0) on EP11 / EP12 models; glass filled nylon 6/6 on EP21. ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break cycles at full load. EP12 models: 30,000 cycles. PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0), with internal o-ring seal. SA surface mount: High temperature CONTACT RESISTANCE: Below 20 mΩ9 typ. initial @ material, glass filled LCP (UL 94V-0). 2-4 V DC, 100 mA, for both silver and gold plated contacts. 9 SWITCH SUPPORT: Brass, matte-tin plated. INSULATION RESISTANCE: 10 Ω9 min. CONTACTS & TERMINALS: B contact material: Copper alloy, DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level. with gold plate over nickel plate. See page A-13 for additional OPERATING TEMPERATURE: –30º9C to 859ºC. contact materials. SOLDERABILITY: Per MIL-STD-202F method 208D, or TERMINAL SEAL: Epoxy. EIA RS-186E method 9 (1 hour steam aging). NOTE: Any models supplied with Q, B, P, S, R or G contact material are RoHS compliant. DEGREE OF PROTECTION: IP57; Protection against harmful dust deposit, full-scale voltage protection, temporary immersion. NOTE: Specifications and materials listed above are for switches with standard options. For information on specific and custom switches, consult Customer Service Center. PACKAGING: Surface mount switches standard in anti-static tape and reel packaging per EIA 481-3, see page A-14 for 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 drawings and reel information. Tape and cover strip are PC lands to suit individual needs. Orientation relative to reflow direction may significantly conductive for use near statically sensitive components, 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. Plunger EP12 SPDT On-Mom. S .215” high EP21 DPST Off-Mom. S1 .110” high S2 .465” high FP Flush Seal R Snap-fitting, .215 high E Epoxy Bushing D1 Unthreaded Terminations Contact Material A Right angle, PC thru-hole B Gold C PC Thru-hole P Gold, matte-tin AV Vertical right angle, PC thru-hole Q Silver AV3 Vertical right angle, snap-in, PC thru-hole S Silver, matte-tin SA Right angle, surface mount G Gold over silver SA1 Right angle, surface mount rear facing R Gold over silver, matte tin V3 Vertical mount, v-bracket V31 Vertical mount, v-bracket, snap-in (EP11 & EP12 only) W Wire wrap Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-9 EP Series Sealed Tiny Pushbutton Switches SWITCH FUNCTION A SWITCH FUNCTION CONNECTED TERMINALS POS. 1 POS. 2 POS. 1 POS. 2 NO. MODEL C&K marking on opposite side C&K marking on opposite side POLES NO. SCHEMATIC EP11 OFF MOM. OPEN 1-3 SPST SP EP12 ON MOM. 2-1 2-3 SPDT SPDT Omit terminal 2 for EP11 models. Terminal Nos. Part number shown: EP12SD1CBE For Reference Only DP OFF MOM. OPEN 1-3,4-6 EP21 DPST DPST Terminal Nos. For Reference Only Part number shown: EP21SD1CBE MOM. = Momentary All models with all options when ordered with G, Q, R or S contact material. PLUNGER S .215” HIGH S1 .110” HIGH S2 .465” HIGH FP FLUSH PLUNGER R SNAP-FITTING S1& S2 actuators are not available with EP12 & EP21 models. FP & R actuators are not available with EP21 model. NOTE: Caps available for plunger options, see page A-14. BUSHING D1 UNTHREADED NOTE: Internal actuator o-ring standard. Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-10 Pushbutton Pushbutton EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A C PC THRU-HOLE W WIRE WRAP SP DP SP DP PC MOUNTING EP11 - Omit center hole. SP and DP SP and DP A RIGHT ANGLE, PC THRU-HOLE PC MOUNTING EP12SD1ABE SPDT EP11 Models: EP11 Models: omit terminal 2. omit thru-hole 2. A RIGHT ANGLE, PC THRU-HOLE PC MOUNTING EP21SD1ABE DPST AV VERTICAL RIGHT ANGLE, PC THRU-HOLE PC MOUNTING EP12SD1AVBE SPDT EP11 Models: EP11 Models: omit hole 2. omit terminal 2. NOTE: Terminal bend radii and lead-in manufacturing option. Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-11 EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A AV VERTICAL RIGHT ANGLE, THRU-HOLE PC MOUNTING EP21SD1AVBE DPST NOTE: Terminal bend radii and lead-in manufacturing option. AV3 VERTICAL RIGHT ANGLE, SNAP-IN, PC THRU-HOLE PC MOUNTING EP12SD1AV3BE SPST EP11 Models: omit hole 2. SA RIGHT ANGLE, SURFACE MOUNT PC MOUNTING .320 (8,13) EP12SD1SAPE .410 MAX SPDT (10,41) EP11 Models: omit pad 2. Available with P contact material only. EP11 Models: Not Available on DPST models. omit terminal 2. SA1 RIGHT ANGLE, SURFACE MOUNT PC MOUNTING .276 .100 .320 (2,54) (7,0) (8,13) .272 .181 .041 (6,90) .071 TYP. (4,60) (1,04) (1,80) .220 (5,60) .059 .313 (1,50) (7,95) .059 (1,50) YY/WW 0.4VA MAX .082 TYP. EPOXY SEAL .160 TERMINAL NOS. .032 TYP. .400 (2,10) (4,06) 12 3 FOR REF. ONLY (0,80) EP12SD1SA1BE (10,16) .100 .200 (2,54) SPDT (5,08) .200 .020 TYP (5,08) (0,51) .051 (1,30) .121 (3,07) SA1 is only available with B and P contact materials. .217 Not Available on DPST models. (5,51) Third Angle .234 (5,94) Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-12 2 (COMM) NC 1 3 NO POS.1 POS.2 ON MOM SCHEMATIC TERMINALS CONNECTED 2-12-3 RECOMMENDED P.C. MOUNTING Pushbutton Pushbutton EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A V3 VERTICAL MOUNT, V-BRACKET V31 VERTICAL MOUNT, V-BRACKET, SNAP-IN PC MOUNTING EP11 Models: o eeole EP12SD1V3BE V31 SNAP-IN SPDT EP11 Models: omit terminal 2. V3 VERTICAL MOUNT, V-BRACKET PC MOUNTING EP21SD1V3BE DPST CONTACT MATERIAL OPTION CONTACT TERMINAL RATINGS CODE MATERIAL PLATING B 1 GOLD 1 0.4 VA MAX. @ 20 V AC OR DC MAX. GOLD LOW LEVEL/DRY CIRCUIT 6 MATTE-TIN P Q 5 SILVER 4,5 SILVER 1 AMP @ 120 V AC OR 28 V DC. POWER 6 MATTE-TIN S G 3 GOLD LOW LEVEL/DRY 0.4 VA MAX @ 20 V AC OR DC MAX. OR 2,3 GOLD OVER SILVER 6 MATTE-TIN CIRCUIT OR POWER 1 AMP @ 120 V AC OR 28 V DC. R * Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications. 1 6 CONTACTS & TERMINALS: Copper alloy, with gold plate over nickel plate. TERMINALS: Copper alloy, with matte tin over nickel plate. 2 END CONTACTS: Coin silver, with gold plate over nickel plate. 3 CENTER CONTACTS & ALL TERMINALS: Copper alloy, with gold plate NOTE: Any models supplied with Q, B P, S ,R or G contact material are RoHS compliant. over nickel plate. 4 END CONTACTS: Coin silver, silver plated. 5 CENTER CONTACT & ALL TERMINALS: Copper alloy, silver plated. All models with all options when ordered with G, S, R or Q contact material. SEAL E EPOXY SEAL Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-13 EP Series Sealed Tiny Pushbutton Switches AVAILABLE HARDWARE A Cap Cap Cap Cap Compatible with snap-fitting plungers Compatible with snap-fitting plungers EP11 & EP12 Models. R option only. EP11 & EP12 Models. R option only. .200 DIA. .310 DIA. (5,08Ø)  (7,87Ø) .155 (,8) (3,94) .080 00 (2,03) (,5) PART NO. PART NO. PART NO. PART NO. 508101000 WHITE 465801000 WHITE 585A01000 WHITE 785A01000 WHITE 508102000 BLACK 465802000 BLACK 585A02000 BLACK 785A02000 BLACK 508103000 RED 465803000 RED 585A03000 RED 785A03000 RED Material: Nylon Material: Nylon Material: Nylon Material: Nylon Finish: Gloss Finish: Gloss Finish: Gloss Finish: Gloss Not for use on S1 plunger Not for use on S1 plunger NOTE: Other colors available, consult Customer Service Center. TAPE & REEL For part number EPXX-SA/SA1 REEL INFORMATION OUTSIDE DIAMETER 13.00 (330,0) PILOT HOLE .512 (13,0) QUANTITY PER REEL 600 EP11SDISAPE EP11FPDISAPE Third Angle Projection Dimensions are shown: Inches (mm) Specifications and dimensions subject to change www.ckswitches.com A-14 Pushbutton