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STT1900N18P55
  • STT1900N18P55

STT1900N18P55

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Thyristor/Thyristor 55 mm Power Start 1800 V, 1900 A module for soft start applications in pressure contact technology. Main benefit of the design concept in comparison to existing soft starter solutions is one slim foot-print (55 mm) fitting 1900 A starting current which allows contactor compatible designs (LxWxH 134x55x100 mm). This Infineon® Power Start module is also available with 1600 V .

Infineon Technologies STT1900N18P55 Product Info

16 April 2026 0

Parameters

Configuration

W1C

Contact Technology

Pressure Contact

Ioverload (21s) [A]

1900

ITSM [A] (@10ms, Tvj max)

14000

rT [mΩ] (@Tvj max)

0.28

RthJA (21s) [W/K ] max

0.087

Tvj [°C] max

155

Voltage Class

1800 V

VT [V/kA]

1.32/1.5

VT0 [V] (@Tvj max)

0.9

∫I2dt [A²s · 103] (@10ms, Tvj max)

980

Apps

Motor control

Features

  • One slim foot-print
  • Reduction to essential components
  • Integrated heatsink
  • No thermal grease
  • Thermal capacity coupled to silicon
  • Double side cooling

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