EP Series Sealed Tiny Pushbutton Switches Features/Benefits Typical Applications A • S ealed against solder & • Telecommunications and cleaning processes networking equipment P • Thru-hole and surface mount models • Computers and peripherals u s • S nap-fitting actuator accepts • Instrumentation and controls h b standard caps u • Tape & reel packaging available tt o • RoHS compliant models available n 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 ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break models; glass filled nylon 6/6 on EP21. cycles at full load. EP12 models: 30,000 cycles. PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0), CONTACT RESISTANCE: Below 20 mΩ9 typ. initial @ with internal o-ring seal. SA surface mount: High temperature 2-4 V DC, 100 mA, for both silver and gold plated contacts. material, glass filled LCP (UL 94V-0). INSULATION RESISTANCE: 109 Ω9 min. SWITCH SUPPORT: Brass, matte-tin plated. DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level. CONTACTS & TERMINALS: B contact material: Copper alloy, 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). DEGREE OF PROTECTION: IP57; Protection against harmful dust NOTE: Any models supplied with Q, B, P, S, R or G contact material are RoHS compliant. deposit, full-scale voltage protection, temporary immersion. NOTE: Specifications and materials listed above are for switches with standard options. PACKAGING: Surface mount switches standard in anti-static For information on specific and custom switches, consult Customer Service Center. 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 drawings and reel information. Tape and cover strip are latest equipment and reflow techniques. Care should be taken in the design and location of conductive for use near statically sensitive components, 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. 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 (not available with EP12 version) Bushing D1 Unthreaded Terminations A Right angle, PC thru-hole C PC Thru-hole Contact Material AV Vertical right angle, PC thru-hole B Gold AV3 Vertical right angle, snap-in, PC thru-hole P Gold, matte-tin SA Right angle, surface mount Q Silver SA1 Right angle, surface mount rear facing S Silver, matte-tin V3 Vertical mount, v-bracket G Gold over silver V31 Vertical mount, v-bracket, snap-in R Gold over silver, matte tin (EP11 & EP12 only) W Wire wrap Dimensions are shown: Inches (mm) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-9

EP Series Sealed Tiny Pushbutton Switches SWITCH FUNCTION A n SWITCH FUNCTION CONNECTED TERMINALS o POS. 1 POS. 2 POS. 1 POS. 2 t t u b NO. MODEL POLES NO. C&K marking on opposite side C&K marking on opposite side SCHEMATIC h s u EP11 OFF MOM. OPEN 1-3 P 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 EP21 OFF MOM. OPEN 1-3,4-6 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 S1 S2 FP R .215” HIGH .110” HIGH .465” HIGH FLUSH PLUNGER SNAP-FITTING S1& S2 actuators are not available with EP12 & EP21 models. FP & R actuators are not available with EP21 model. R actuators are not available with EP12 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) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-10

EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A C W PC THRU-HOLE WIRE WRAP P u SP DP s h SP DP b u t t o n 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) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-11

EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A AV n VERTICAL RIGHT ANGLE, THRU-HOLE o PC MOUNTING t t u b h s u P 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 SPDT .410 MAX (10,41) EP11 Models: Available with P contact material only. omit pad 2. EP11 Models: Not Available on DPST models. omit terminal 2. SA1 RIGHT ANGLE, SURFACE MOUNT PC MOUNTING .276 .100 .320 (7,0) (2,54) (8,13) .272 (1.0,0441) (.41,8610) .220 (6,90) .(017,810 T)YP. (5,60) .313 .059 .059 (7,95) (1,50) (1,50) YY/WW 0.4VA MAX EP12SD1SA1BE EPOXY SEAL .400 (4.1,0660) 1 2 3 FTOERRM RIENFA.L O NNOLSY. .03(20 ,T8Y0P). .(028,120 T)YP. SPDT (10,16) .200 (.210,504) (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) .234 Third Angle (5,94) Projection Dimensions are shown: Inches (mm) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-12 2 (COMM) POS.1 POS.2 NC 1 3 NO TEROMNINALS CONNMEOCMTED SCHEMATIC 2-1 2-3 RECOMMENDED P.C. MOUNTING

EP Series Sealed Tiny Pushbutton Switches TERMINATIONS A V3 VERTICAL MOUNT, V-BRACKET P V31 VERTICAL MOUNT, V-BRACKET, SNAP-IN u s h PC MOUNTING b u t t o n EP11 Models: EP12SD1V3BE o(cid:31)(cid:31)(cid:31) (cid:31)e(cid:31)(cid:31)e(cid:31)(cid:31)ole(cid:31) V31 SNAP-IN SPDT EP11 Models: omit terminal 2. V3 VERTICAL MOUNT, V-BRACKET PC MOUNTING EP21SD1V3BE DPST CONTACT MATERIAL OPTION CONTACT TERMINAL CODE MATERIAL PLATING RATINGS B GOLD 1 GOLD 1 LOW LEVEL/DRY CIRCUIT 0.4 VA MAX. @ 20 V AC OR DC MAX. P MATTE-TIN 6 Q SILVER 5 S SILVER 4,5 MATTE-TIN 6 POWER 1 AMP @ 120 V AC OR 28 V DC. G GOLD OVER SILVER 2,3 GOLD 3 LOW LEVEL/DRY 0.4 VA MAX @ 20 V AC OR DC MAX. OR R MATTE-TIN 6 CIRCUIT OR POWER 1 AMP @ 120 V AC OR 28 V DC. * Note: See Technical Data section of this catalog for RoHS compliant and compatible definitions and specifications. 1 CONTACTS & TERMINALS: Copper alloy, with gold plate over nickel plate. 6 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 over nickel plate. NOTE: Any models supplied with Q, B P, S ,R or G contact material are RoHS compliant. 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) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-13

EP Series Sealed Tiny Pushbutton Switches AVAILABLE HARDWARE A Cap Cap Cap Cap n Compatible with snap-fitting plungers Compatible with snap-fitting plungers o EP11 & EP12 Models. R option only. EP11 & EP12 Models. R option only. t t u b .200 DIA. .310 DIA. h (5,08Ø) .155 (7,87Ø) (cid:31)(cid:31)(cid:31)(cid:31) ((cid:31),8(cid:31)) s (3,94) u P .080 (cid:31)(cid:31)00 (2,03) ((cid:31),5(cid:31)) 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) 26 Mar 19 Specifications and dimensions subject to change www.ckswitches.com A-14