Inrush Current Solutions

Inrush Current Limiters are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by an electrical device during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance which in turn contributes to high inrush current.

Additionally, devices that produce alternating current such as electric motors or transformers can draw several times their steady state current at switch on. Although this additional draw of inrush often lasts less than ½ of a normal 60 hertz cycle, that is enough time to cause possible damage to the equipment.

Order your free Inrush Current or Temperature Sensing Sample

Inrush Current Limiters

as-series

The AS Series of Inrush Current Limiters are used in high energy applications and short term high current.

surge-gard

Surge-Gard Inrush Current Limiters Formerly of RTI Electronics.

Standard Inrush Current Limiters

Standard Inrush Current Limiters come in a wide array of sizes, values, and ratings.

bigampscaled

The Big AMP series of Inrush Current Limiters are used in high energy applications and short term high current.

MS35 Inrush Current Limiter

The MS35 is our most rugged Inrush Current Limiter for up to 680 volts.

PTC Inrush Current Limiters

PTC Thermistor for Inrush Current Protection.  Rated for up to 680 Volts.

ul-and-csa-approved-updated

These Inrush Current Limiters are UL and CSA approved.

Mini Amp Miniature Inrush Current Limiters where cool operation is desired

The Mini-AMP Inrush Current Limiter is great for compact power applications.

Mega Surge Inrush Current Limiters

The Mega Surge Inrush Current Limiters are best used when you have higher than average voltage and current requirements.

Inrush Current Limiter Data Sheets

 

 

Follow Our Blogs
Inrush Current Limiter Family

Cool-down Time for Inrush Current Limiters

NTC Thermistor Inrush Current Limiters are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by electrical equipment during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance, which in turn contributes to a high inrush current. Cool-Down Time After Power … Continue Reading

0 comments
Capacitor Inrush Current Limiter

Capacitor Inrush Current

Reducing Inrush Current to Capacitors Calculating the amount of current flowing to the capacitor, then protect your load from this initial flow of current is important for any electronic device.  The ability to reduce this inrush, caused at powerup, can typically be accomplished by the use of an NTC (negative temperature coefficient) thermistor inrush current limiter.   Cause of the Inrush Current Filter capacitors are devices designed to reduce the … Continue Reading

0 comments
Ametherm’s Sensing Thermistors and Inrush Current Limiter’s Part Numbers Decoded

Ametherm’s Temperature Sensor and Inrush Current Limiter Part Numbers Decoded

From the creation of the first inrush current limiter series, back in 1994, Ametherm knew that having logic behind the series naming convention would be important.  Not only for organizational means but also to easily identify the components of the inrush current limiters and NTC thermistor temperature sensors. Both product lines, the inrush current limiters and NTC thermistor temperature sensors, have stringent guidelines created to get the most accurate description … Continue Reading

0 comments

 

 

Resource Center

Inrush current limiting solutions, tips and tricks.

Inrush Current Limiters

Inrush Current APP Notes

New Call-to-action

Distributor Information

Our products are available for immediate delivery through our network of distributor partners.

Digi Key Distributors
Mouser Distributors

Additional Resources

Check out our Videos on Inrush Current