DIGITAST

DIGITAST CK | Alldatasheet

Document overview

• PDF pages: 3

Technical content

D D–25 Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com DIGITAST Microminiature SPDT, Key Switches Series SER Narrow button SET Wide button SERU Switch body only (no button) LED NONE No LED L 1 LED 2L 2 LED’s Button Color None (SERU) BK Black GY Gray WH White RD Red BU Blue 1st LED Color* NONE No LED RD Red YE Yellow GN Green A U Function EE Latching OA Non-latching Contact Material AU Gold How To Order Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select desired option from each category and place it in the appropriate box. Some of the configurations may not be available or could require some development. Features/Benefits

• High reliability/long life
• Designed for low level switching
• Ready to implement on PCB
• Latching function available
• Several button options
• RoHS compliant and compatible Typical Applications Medical
• Instrumentation
• Industrial electronics
• Audio electronics Electrical SWITCHING POWER MAX.: 240 mW DC SWITCHING VOLTAGE MAX.: 24 V DC SWITCHING CURRENT MAX.: 10 mA DC CARRYING CURRENT AT 20˚C (push-push version): 100 mA DIELECTRIC STRENGTH (50 Hz, 1 min): 500 V OPERATING LIFE with or without max. switching power Momentary: ≥ 5 x 106 operations Push-push: ≥ 5 x 10 5 operations CONTACT RESISTANCE: Initial ≤ 50 mΩ After 5 x 10 6 operations: ≤ 100 mΩ INSULATION RESISTANCE: ≥ 1010 Ω CAPACITANCE at f= 10 kHz: ≤ 0.8pF BOUNCE TIME: ≤ 2.5 ms Operating speed 400 mm/s (15.75/s) Environmental OPERATING TEMPERATURE: -25˚C to 85˚C. Construction FUNCTION: momentary or push-push CONTACT ARRANGEMENT: 1 change over contact SPDT, NO MODE OF SWITCHING: Non-shorting DISTANCE BETWEEN BUTTON CENTERS: HORIZONTAL MINIMUM: 12,7 (0.500) or 17,78 (0.700) VERTICAL MINIMUM: 17,78 (0.700) TERMINALS: PC pins MOUNTING: Soldering, centering pins Mechanical TOTAL TRAVEL: ≤ 3 (.0018) SWITCHING TRAVEL: 1,5 (0.0591) LATCHING TRAVEL: 1,8 (0.0709) OPERATING FORCE: 1.5 +/- 0.5 N (150 +/- 50 grams) Process SOLDERABILITY: Wave soldering, compatible with lead free soldering profile Hand soldering, 350˚C for 3 seconds 2nd LED Color* NONE No LED RD Red YE Yellow GN Green Button Style SR Narrow ST Wide Button Color BK Black GY Gray WH White RD Red BU Blue K LED Spacing* NONE Narrow LED Spacing (TYP Europe)

7.62 Wide LED Spacing

(TYP No. America) Body Color NONE White (STD) BRN Brown LED Holes NONE No LED holes L 1 LED hole 2L 2 LED holes Latching None For use with momentary switch EE With “EE” staple for latching* LED spacing only applies when 1 LED requested Additional button colors available by request * Additional LED colors available by request including Bi color configurations Switch Button Reference SER BK AU OA Reference SRK BK

D D–26 Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com DESIGNATION (0.3) (0.1) (0.484) (0.2)( 0.2) (0.6) (0.4) (0.680) (0.315) (0.563) (0.0394) (0.177) (0.0276) [0.0157] (0.0394) 10,16 12,3 7,62 2,54 14,74 5,085,08 17,5 14,3 1ø 0,7 0,4 4,5 (0.484) (0.673) 12,3 17,1 221 0 0 SER2LSERLSER Total travel 3 (0.118) Switching travel 1.5 (0.0591) 1st LED 2nd LED Total travel 3 (0.118) Switching travel 1.5 (0.0591) SET2LSETLSET (0.563) 14,3 (0.681) (0.673) 17,3 17,1 221 0 0 1st LED 2nd LED DIGITAST Microminiature SPDT, Key Switches SER NARROW BUTTON SET WIDE BUTTON SERU NO BUTTON [0.787] [0.177] [0.0197] [0.311] [0.0276] [0.015] [0.0394] [0.3] [0.484] [0.2] [0.6] [0.681] 221 0 0 2 1ø 0.5 7.9 7.62 12.3 15.24 5.08 17.3 4.5 0.7 0.4

D D–27 Dimensions are shown: mm Specifications and dimensions subject to change www.ckswitches.com OPTION CODE MATERIAL AU Gold [0.6] [0.2] [0.1] [0.3] [0.4] [0.2] [0.1] + - [0.6] [0.2] [0.1] [0.3] 7,62 5,08 2,54 15,24 [0.6] [0.2] [0.1] [0.3] [0.4] [0.2] [0.1] + - 7,62 2,54 10,16 5,08 5,08 2,54 15,24 7,62 15,24 2,545,085,08 10,16 2,54 [0.6] [0.2] [0.1] [0.3] [0.4] [0.2] [0.1] + - 7,62 15,24 2,545,085,08 10,16 2,54 FUNCTION OPTION CODE COLOR SCHEMATIC OA Momentary EE Push-Push CONTACT MATERIAL BK BLACK GY GRAY Other button colors available by request [red (RD), green (GN), white (WH), yellow (YE) , blue (BU) , orange (OG)]. LED COLOR OPTION CODE COLOR NONE Models without LED RD Red GN Green YE Yellow BUTTON COLOR NONE NO LED L 1 LEDs 2L 2 LEDs 7.62 mm Spacing (TYP No. America) NARROW SPACING (TYP EUROPE) TOP VIEW OF PCB DIGITAST Microminiature SPDT, Key Switches LED