Thinking Electronic Industrial Co, Ltd









Thinking Electronic Industrial Co., Ltd. provides a broad line of protective circuit components, including over-voltage protection, over-temperature protection, and over-current protection. The product portfolio offers negative temperature coefficient thermistor (NTC thermistor), zinc oxide varistors (MOV), ceramic positive temperature thermsitors (PTC thermistor), polymer postitive temperature coefficient thermistors (Polymer PTC resettable fuse), temperature sensors, and gas discharge tubes.



Assured to better quality and improving management system, Thinking has been ISO/TS 16949 and ISO 9001 certified and remains committed to offer product compliance in conformity assessment with UL, CSA, VDE, TUV, CQC approvals.
Thinking is continually developing better quality and better service by working closely with customers, and remains committed to be the best choice of passive components.
Thinking achieved certification to QC080000, indicating its ability of managing hazardous substance through R&D, design, and manufacturing, and its efforts toward hazardous substance reduction and green production. The certification shows that Thinking is able to control and manage hazardous substance during production effectively and build green supply chain and satisfy customers’ needs of green purchase. Furthermore, meeting RoHS requirements suggests that Thinking’s pursuing the best product quality and performing its social and environmental responsibility.




UL Certification
  VDE Certification   TUV Certification  
UL CTDP Lab Qualified
ISO 9001  
ISO/TS 16949:2002  

Kaohsiung factory - Taiwan  



Changzhou factory - China  



Yichang factory - China  




Dongguan factory - China   

Provide products and services for customer satisfaction, which to be achieved through overall participation, continuous improvement, technical innovation, quality enhancement, competitive cost and on-time delivery.




Varistor is approved by UL 1449 3rd edition.

  NTC Thermistor is approved by CQC GB/T 6663.1-2007.
  Sensor is recognized to VDE. 
  NTC Thermistor, NTC Sensor, PTC and PPTC Thermistor are recognized to UL 1434 .
2006 THINKING laboratory (Changzhou) is certified by UL CTDP (Client Test Data Program)
2005 Received ISO/TS 16949:2002 certification
2004 NTC Thermistor is verified by TUV.
Varistor is approved by cUL 1414.
2003 Varistor is approved by UL 1414
2001 Approved by QS 9000, a system based on ISO 9001, and implemented.
THINKING laboratory (Nantze) is certified by UL CTDP   
1998 Varistor is approved by VDE
1996 Received ISO 9002 certification
1992 NTC Power Thermistor is certified by UL
1991 NTC Power Thermistor is certified by CSA


IQC assures received products from suppliers meet THINKING quality standard and their steady supplies. For key materials, trained inspectors are responsible for testing of principal parameters. In addition, a supplier evaluation ensures THINKING and its suppliers benefit by their high-quality materials.
IPQC emphasizes that goods in process meet technical consideration, so that production is mastered.
Trained inspectors perform. 
FQC to minimize defects in a THINKING product to zero. Meanwhile, product part numbers are provided to speed up a customer’s receiving inspection. 
Production quality control of THINKING is based on SPC. Its cross function team builds the best quality assurance procedure to continuously improve its product quality. In addition, THINKING advanced equipment for reliability testing allows it to test its products and meet international standards and regulations pertaining to quality assurance, such as UL. For providing environmentally-friendly products, certification of IECQ QC080000 helps THINKING to manage and control its material management, manufacturing process, supply chain, and quality assurance through implementation and maintenance of HSPM for hazardous substance free electronic components. 


SCK 132R56 MSY

termistore NTC dalla Thinking Electronic

limitatore di corrente di spunto iniziale

KRG 016 0090

PTC dalla Thinking Electronic

fusibile ripristinabile


prodotto su disegno del cliente

dalla Thinking Electronic