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DIGITAST

Microminiature SPDT, Key Switches

DIGITAST, Key Switch

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

Construction

  1. FUNCTION: momentary or push-push
  2. CONTACT ARRANGEMENT: 1 change over contact SPDT, NO
  3. MODE OF SWITCHING: Non-shorting
  4. DISTANCE BETWEEN BUTTON CENTERS:
  5. HORIZONTAL MINIMUM: 12,7 (0.500) or 17,78 (0.700)
  6. VERTICAL MINIMUM: 17,78 (0.700)
  7. TERMINALS: PC pins
  8. MOUNTING: Soldering, centering pins

Mechanical

  1. TOTAL TRAVEL: ≤ 3 (.0018)
  2. SWITCHING TRAVEL: 1,5 (0.0591)
  3. LATCHING TRAVEL: 1,8 (0.0709)
  4. OPERATING FORCE: 1.5 +/- 0.5 N (150 +/- 50 grams)

Process

  1. SOLDERABILITY: Wave soldering, compatible with lead free soldering profile. Hand soldering, 350ºC for 3s.

Electrical

  1. SWITCHING POWER MAX.: 240 mW DC
  2. SWITCHING VOLTAGE MAX.: 24 V DC
  3. SWITCHING CURRENT MAX.: 10 mA DC
  4. CARRYING CURRENT AT 20˚C (push-push version): 100 mA
  5. DIELECTRIC STRENGTH (50 Hz, 1 min): 500 V
  6. OPERATING LIFE with or without max. switching power Momentary: ≥ 5 x 106 operations Push-push: ≥ 5 x 105 operations
  7. CONTACT RESISTANCE: Initial ≤ 50 mΩ After 5 x 106 operations: ≤ 100 mΩ
  8. INSULATION RESISTANCE: ≥ 1010 Ω
  9. CAPACITANCE at f= 10 kHz: ≤ 0.8pF
  10. BOUNCE TIME: ≤ 2.5 ms
  11. Operating speed 400 mm/s (15.75/s)

Environmental

  1. OPERATING TEMPERATURE: -25°C to 85°C.