The HCET-A/TB02 is a compact, RoHS-compliant bimetallic thermostat engineered for sensitive circuit protection in critical applications. With a patented snap-action mechanism (Patent: ZL2013 20699495.2), it delivers ±3℃ accuracy across 30-155℃ ranges, making it the ideal upgrade for SEKI ST-22 JP series in battery management systems, low-current devices, and thermal cable networks.

Product feature:

• Interchangeable Compatibility
  Direct replacement for ST-22 JP with enhanced thermal response
• Dual Configuration
  Normally Open (Model K) & Normally Closed (Model B) options
• Military-Grade Reliability
  30,000+ mechanical cycles under IEC 60691 standards
• Industry-Specific Solutions
  Battery Safety: Prevents thermal runaway in Li-ion packs and BMS boards
  Smart Heating: Embedded protection for electric blankets, floor heating systems
  Transformer Safety: Fail-safe mechanism for telecom/power supply units

Electrical Characteristics:

Dimension size

Product detail

Application

Nanjing Haichuan Electronic Co., Ltd., located in Nanjing Luhe Economic Development Zone, is a national high-tech enterprise specializing in the production of high-end motor protectors, overcurrent protectors, thermostats, thermal protectors, temperature switches, temperature control switches, and temperature sensors. The company has passed the IATF16949 quality management system certification and has multiple independent patents. Its products have passed UL, TUV, CQC, and PSE international safety certification, The company adopts advanced automation equipment production technology, and its various series of products are widely used in fields such as glass lifter motors, wiper motors, seat motors, mixers, tubular motors, electric tools, battery packs, heating pads, new energy, etc. Haichuan embraces all rivers and pursues excellence. With professional technology, Haichuan is committed to providing reliable comprehensive solutions for overheating and overcurrent protection.