TSM Series: Thermistor for Safety Circuits   TSM series, THINKING’s SMD NTC thermistor, passes 100,000 cycles of endurance test for safety circuit and complies with UL 1434.  More         THINKING Introduces New Thermally Protected Varistor - TVT Series   Continuous over-voltage, which is mostly caused by the line imbalance of neutral to ground in AC line or abnormal connection of power system, triggers a varistor into a continuous clamping condition and results in fire or smoke. Therefore, THINKING launches new thermally protected varistor, TVT series, to effectively disconnect the varistor from circuit under abnormal over-voltage and limited current condition (requirement of UL 1449 3rd Edition, Section 39.4) to ensure user safety.  More       News Release 01/29/2010  -  TSM Series: Thermistor for Safety Circuits 09/16/2009  -  THINKING Introduces New Thermally Protected Varistor - TVT Series 05/18/2009  -  THINKING Varistor- New compact series