Bourns Mini-Breakers

Bourns Mini-Breakers are Thermal Cutoff (TCO) devices that are used as safety devices to help prevent heat and fires caused by excess current, mainly in lithium-ion batteries. The Mini-Breakers are self-preserving devices designed to stay tripped during abnormal temperatures, and then recover when power is cut, and the temperature returns to a safe level. These Mini-Breakers are UL and TUV certified, and provide a robust and complete alternative for the protection of lithium cells in a compact and single-package solution. The Mini-Breakers are ideal for various applications, including digital cameras, mobile phones, notebooks, PCs, and tablets.

Features

  • Compact and a single-package solution
  • Controls abnormal, excessive current instantaneously
  • Halogen-free
  • Low or high current type
  • Overtemperature and overcurrent protection for lithium polymer and prismatic cells
  • RoHS compliant
  • UL and TUV certified
  • Wide range of temperature options

Applications

  • Digital cameras
  • Mobile phones
  • Notebooks
  • PCs
  • Tablets

Technical Specifications

Parameters Minimum reset temperature (°C) Maximum resistance rating (mΩ) Maximum leakage current (mA) @25°C Minimum holding voltage (V) @25°C Resources
Series
AC 40 2 200 3.5 Datasheet
AD 20 and 40 4 300 8 Datasheet
HC 40 5 200 3 Datasheet
LC 40 10±5 150 2 Datasheet
NR 40 5 and 15 150 and 200 2 Datasheet
SD 20 and 40 4 300 8 Datasheet