PTR Hartmann

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1 Knob version

2 Knob colour

3 Housing version

Order code:
28-17.
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Shorttravel pushbutton

28-17.

  • ESD protection to front 15.0 kV
  • Mechanical lifetime 250.000 cycles
  • Sealed against cleaning fluids - watertight

Integrated circuits are very ESD sensitive. Therefore this shorttravel pushbutton is designed with sufficient distance from front to solderpins of 15kV ESD protection. The specialy designed contact bridge of CrNi-steel guarantees electrical life with min. 250000 operations. The pushbutton is sealed against soldering fluids and watertight on request.

Fixation mode THT 
Pitch 2.54 mm
Number of poles twin make contact 
Mechanical lifetime 250.000 operations 
Electrical lifetime 200.000 actuations 
Function impulse 
Contact form Normally Open 
Operating force < 4.0 N
Operating travel 0.9 + 0.3 mm
Vibration > 5.0 g 
Shock test > 10.0 g 
Resistance against cleaning fluids yes 
Operating temperature -25 °C ... +85 °C
Switching voltage 60.0 V
Operating current max. 25.0 mA
Contact load, static ≤ 2.0 A
Contact rating max. 1.0 VA
Test voltage 500.0 V 50Hz 
Contact resistance initial 150.0 mΩ
Insulation resistance >10.000 MΩ
Insulations class VDE 0110 Gr. C 
ESD protection to front ≤ 15.0 kV
Housing PA6.6 GF30 
Flamability UL94V0