Ametherm MS35 Series Inrush Current Limiters

Ametherm / Vishay MS35 Series Inrush Current Limiters are designed to manage high-energy inrush currents in power systems. These current limiters support steady-state currents from 10A to 50A and can absorb up to 800 joules of energy. The MS35 current limiters feature resistance values ranging from 0.5Ω to 20Ω, with dissipation constants between 78mW/°C and 102.45mW/°C. The components operate with body temperatures up to 235°C and find applications for electric vehicles and pre-charge circuits for battery chargers.

Features

  • Energy handling capacity of up to 800 joules
  • Matches power resistor performance in a smaller size
  • Nominal diameter of 35mm, with some versions reaching up to 38mm
  • Nominal thickness of each unit is 9.2mm
  • Protects components from current spikes
  • Replaces resistor-timer setups with one part

Applications

  • Battery inverters and energy storage
  • Electric vehicle battery circuits
  • Pre-charge circuits for battery chargers
  • Wind and solar power systems

Technical Specifications

Parameters Values
Body Temperatures up to 235°C
Dissipation Constant Range 78mW/°C to 102.45mW/°C
Maximum Capacitance Range 1000µF to 1800µF at 680Vac
Resistance Range 0.5Ω to 20Ω
Thermal Time Constant Range 65s to 240s