Ametherm MS22 30005

  • Ametherm

Product Features

  • Inrush current limiting thermistor
  • Resistance of 30Ω (at 25°C)
  • Maximum steady state current of 5A
  • Maximum recommended energy of 150J
  • Voltage rating from 120VAC to 680VAC
  • Body temperature of +174°C at maximum current

Applications

  • Power Control
  • Exempt

Description

The MS22 30005 inrush current limiting thermistor from Ametherm offers a maximum steady state current of 5A (up to +25°C), resistance of 30Ω ±20% (at 25°C) and a maximum recommended energy rating of 150J. Ametherm’s MegaSurge™ series of inrush current limiting NTC thermistors reduce costs and greatly simplify designs. In addition, they increase safety by eliminating the fire hazard associated with failed relays. While traditional thermistors are only certified for input voltages from 85 VAC to 265 VAC, UL recognised MegaSurge™ devices are certified for single and three phase input voltages up to 480 VAC. These specifications are the highest of any single-solution inrush current limiting device on the market.

  • Inrush current limiting thermistor
  • Resistance of 30Ω (at 25°C)
  • Maximum steady state current of 5A (up to +25°C)
  • Maximum recommended energy of 150J
  • Voltage ratings of 120VAC, 240VAC, 440VAC and 680VAC
  • Actual energy failure at 285J
  • 0.23Ω at 100% maximum current and 0.65Ω at 50% maximum current
  • Body temperature of +174°C at maximum current
  • Material type H (for beta and curve)
  • Tolerance ±20%
  • Dissipation constant of 45.4mW/°C
  • Thermal time constant of 112mW/s
  • Recognised by Underwriters Laboratories (UL) for ensured safety

 

Typical applications for the MS22 series include:

  • Inrush current protection of power supplies
  • Motor controllers, Audio amplifiers, Battery chargers and Frequency generators,
  • Plasma cutting tools, MRI machines and Toroidal transformers

The below table gives the full specifications of the Ametherm MS22 30005 series:

Ametherm MS22 30005 Specifications

Specifications

Weight 0.00000 kg
Dimensions 23.00 × 9.00 × 32.20 mm
Resistance at +25°C

Actual Energy Failure

Body Temperature at Maximum Current

Maximum Steady State Current

Tolerance

Voltage Rating

, , ,

Material Type

Dissipation Constant

Thermal Time Constant

Package / Size

Series / Model

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RoHS Compliant Product with Exemption – Ametherm

This product meets the requirements in compliance with RoHS Directive 2011/65/EU including Directive (EU) 2015/863 amending Annex II, on the restriction of the use of Certain Hazardous Substances in Electrical and Electronic Equipment.

The above product is, however, is not Pb free, using exemption 7(a) “Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead)

Ametherm AS, MS and SL Videos

We are pleased to provide you with a range of videos, please see below for the latest content available:

 

 

VIDEOS
Place holder video for YouTube video Limiting Inrush Current with NTC and PTC Themistors video

Learn how to limit inrush current using NTC and PTC thermistors in this presentation by Ametherm.

Many applications today, including industrial machinery, power tools and other high current equipment, use limiting inrush current as a major design consideration to combat the problematic effects of inrush current.

Inrush current occurs when a system powers on and experiences a spike in current. This current can be substantially higher than standard operating current. If not properly managed, it can reduce the effective operating life and impose damage to equipment. For example, inrush current could disable a cooling fan, eventually leading to total system failure.

Applications that are switched on and off quickly, such as welding equipment, present a particular concern for limiting inrush current. The limiting inrush current circuit must reset instantaneously during each power on to protect the system. This further complicates the management of inrush current.

Place holder video for YouTube video Limiting Inrush Current for a 40VA Transformer

Inrush current often causes problems for transformers. This video will show you how to calculate the right inrush current limiter for your transformer in 7 simple steps.

Place holder video for YouTube video DC Motor Inrush Current and What You Need to Know

What does inrush current have to do with DC motors? This video answers that question by discussing the cause of DC motor inrush current and how to prevent the inrush of current at startup from possibly damaging the DC motor with the use of Ametherm's Inrush Current Limiters. They start by explaining how a DC motor functions, its applications and key components, how inrush current factors in, how to solve the problem of inrush current, and how to select the right inrush current limiter for your application with three easy steps.

VIDEOS
Place holder video for YouTube video
Limiting Inrush Current with NTC and PTC Themistors video

Learn how to limit inrush current using NTC and PTC thermistors in this presentation by Ametherm.

Many applications today, including industrial machinery, power tools and other high current equipment, use limiting inrush current as a major design consideration to combat the problematic effects of inrush current.

Inrush current occurs when a system powers on and experiences a spike in current. This current can be substantially higher than standard operating current. If not properly managed, it can reduce the effective operating life and impose damage to equipment. For example, inrush current could disable a cooling fan, eventually leading to total system failure.

Applications that are switched on and off quickly, such as welding equipment, present a particular concern for limiting inrush current. The limiting inrush current circuit must reset instantaneously during each power on to protect the system. This further complicates the management of inrush current.

Place holder video for YouTube video
Limiting Inrush Current for a 40VA Transformer

Inrush current often causes problems for transformers. This video will show you how to calculate the right inrush current limiter for your transformer in 7 simple steps.

Place holder video for YouTube video
DC Motor Inrush Current and What You Need to Know

What does inrush current have to do with DC motors? This video answers that question by discussing the cause of DC motor inrush current and how to prevent the inrush of current at startup from possibly damaging the DC motor with the use of Ametherm's Inrush Current Limiters. They start by explaining how a DC motor functions, its applications and key components, how inrush current factors in, how to solve the problem of inrush current, and how to select the right inrush current limiter for your application with three easy steps.

Ametherm MS22 30005 Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
Ametherm MS22 30005 MegaSurge™ inrush current limiting thermistor datasheet

Ametherm MS22 30005

Quantity
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