S Series Inrush Current Limiters

Introduction

The S Series Inrush Current Limiters (ICLs) from TDK Corporation are advanced NTC thermistors designed to manage high-power applications effectively. With the ability to handle maximum steady-state currents of up to 35 A and energy absorption of 750 J, these components are essential for ensuring reliable suppression of inrush currents in various demanding environments.

Part Description

The S series includes two families of NTC thermistors: the S30 (B57130S0M000) and the S36 (B57136S0M100). These thermistors are optimized for high-power applications, featuring disk diameters of 30 mm and 36 mm, respectively. The S30 series can handle up to 19 W, while the S36 series extends this capability to 25 W. They are rated for a wide climatic category of 55/170/21 (IEC 60068-1) and cover resistance values from 2 Ω to 20 Ω, with permissible capacitances up to 13,050 µF at 240 V (AC). The stable performance and low power loss during continuous operation make them ideal for enhancing system efficiency and reducing electricity costs.

Applications

• Switch-mode power supplies
• Frequency converters
• Photovoltaic inverters
• Uninterruptible power supplies (UPS)
• Soft-start motors

Industries

• Renewable energy
• Consumer electronics
• Industrial automation
• Telecommunications
• Automotive

Usage Ideas

1. Switch-Mode Power Supply Design: Integrate the S series ICLs into a new switch-mode power supply design to minimize inrush current and enhance overall efficiency.
2. Photovoltaic Inverter Development: Utilize the S series thermistors in photovoltaic inverters to ensure reliable operation and protection against inrush currents during startup.
3. Soft-Start Motor Control: Implement the S series ICLs in soft-start motor applications to reduce mechanical stress and electrical surges during motor activation.

Conclusion

The S Series Inrush Current Limiters from TDK Corporation are a vital component for managing inrush currents in high-power applications. Their robust design, coupled with stable performance and low power loss, makes them an excellent choice for various industries. By incorporating these thermistors into your projects, you can enhance system efficiency, reduce energy costs, and ensure reliable operation in demanding environments.