S series NTC thermistors from TDK Electronics handle steady-state currents up to 35 A and absorb energy up to 750 J. They enable reliable inrush current suppression in switch-mode power supplies, frequency converters, photovoltaic inverters, UPS systems, and soft-start motors.
The S series includes two leaded variants—the S30 and S36—with disk diameters of 30 mm and 36 mm, respectively. The S30 features 7.5-mm lead spacing and a maximum power handling of 19 W, while the larger S36 has 19-mm lead spacing and extends power handling to 25 W. Both variants are rated for a wide climatic category of 55/170/21 in accordance with IEC 60068-1 requirements.
The S30 (ordering code B57130S0M000) and S36 (B57136S0M100) families cover basis resistance values of 2 Ω to 15 Ω and 2 Ω to 20 Ω, respectively. They support continuous currents ranging from 12 A to 25 A (S30) and 10 A to 35 A (S36). Permissible capacitances can reach up to 13,050 µF at 240 VAC (see datasheet for details). The table below summarizes the key electrical characteristics of the S30 and S36 variants.
To access the datasheets for the S30 series and S36 series, click here.
TDK Electronics
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