Ametherm_AS35_series

Inrush Current Limiting Thermistors

Ametherm AS35 0R550

  • Inrush current limiting thermistor
  • Resistance of 0.5Ω (at 25°C)
  • Maximum steady state current of 50A
  • Maximum recommended energy of 800J
  • Body temperature of +210°C at maximum current
  • Maximum disc diameter 36mm
  • Ametherm
  • Exempt

Specifications

Weight 0.00000 kg
Dimensions 41.50 x 8.40 x 36.00mm
Actual Energy Failure

1400J

Dissipation Constant

78.2mW/°C

Material Type

Maximum Steady State Current

50A

Mounting / Size

Resistance at +25°C

0.5Ω

Series / Model

,

Thermal Time Constant

55mW/s

Tolerance

Ametherm_AS35_series

Inrush Current Limiting Thermistors

Ametherm AS35 0R550

  • Inrush current limiting thermistor
  • Resistance of 0.5Ω (at 25°C)
  • Maximum steady state current of 50A
  • Maximum recommended energy of 800J
  • Body temperature of +210°C at maximum current
  • Maximum disc diameter 36mm
  • Ametherm
  • Exempt

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Working alongside your design team from the earliest stage, we help you select the right part for the application and, where a standard part will not do, develop customised components with our manufacturing partners such as lead length, termination and package size.

Related Ametherm AS35 0R550 Components

The AS35 0R550 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 50A (up to +65°C) and a resistance of 0.5Ω ±25% (at 25°C). The Ametherm AS series are designed to withstand high steady-state current and input energy. Compared to traditional inrush current limiters, the devices offer lower current density, faster reset times, and a wider temperature range without derating. This lower current density, in combination with a uniform temperature gradient throughout the disc, increases reliability by eliminating hot spots from fatigue. The AS series from Ametherm are suitable for high energy and short term high current applications.

  • Inrush current limiting thermistor
  • Resistance of 0.5Ω (at 25°C)
  • Maximum steady state current of 50A (up to +65°C)
  • Maximum recommended energy of 800J
  • Actual energy failure at 1400J
  • 0.00Ω at 100% maximum current and 0.02Ω at 50% maximum current
  • Body temperature of +210°C at maximum current
  • Material type B (for beta and curve)
  • Tolerance ±25%
  • Dissipation constant of 78.2mW/°C
  • Thermal time constant of 55s

 

Typical applications for the AS series include:

  • Protection of pre-charge circuits in lithium ion batteries
  • Variable-frequency drives in sports equipment like treadmills, high-speed computers and processors
  • Switch mode power supplies for plasma cutters, welders, audio amplifiers, MRIs and x-ray machines

The below table gives the full specifications of the Ametherm AS35 0R550 series:

Ametherm AS35 0R550 Specifications

Ametherm_AS35_series

Inrush Current Limiting Thermistors

Ametherm AS35 0R550