Circuit Protection Devices protection devices are used to protect electronic components from unwanted transients such as current and voltage surges, electrostatic discharge (ESD), lightning, spikes and other signals that can imperil the operation or damage the component. 

Analog ICs, Diodes, Transistors, Mosfet, TVS and ESD Protections, LDO, DC-DC, Hall effect sensors.

Website: https://www.taiwansemi.com/en/

XTALS, Oscillators , Digital transistors, MOSFETS, IGBT Linear Voltage Regulator, DC-DC converters (Buck / Boost) Operational Amplifier 1KHz ~20MHz, Comparators Diodes, ZENER, TVS, SCHOTTKEY, BRIDGE, RECTIFIER (ULTRA FAST) MOSFET, N channel , P Channel, Complementary , Bipolar Transistors 

Website: https://ait-ic.com/

Protection solution, fuses, power distributors, ESD protection, PTC, Super capacitors and Power inductors.

Website: https://www.eaton.com/us/en-us.html 

N/P Channels, Bipolar Transistors, TVS, Schottkey, Rectifier and small signal diodes;

Website: https://www.eris.com.tw/index_EN.php   

Diodes : Small signal, TVS, Schottky, Rectifiers, Bridge Diodes ESD protection Diodes MOSFETS 

Website: http://www.yeashin.com/index.php?route=common/home

Varistors, NTC/PTC Thermistors, Gas Arrestors, TVS diodes, ESD Protection ICs

Website: https://www.thinking.com.tw/#