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AC Series Breakers

Bourns AC series resettable thermal cutoff devices

Image of Bourns' AC Series BreakersBourns' model AC series miniature resettable thermal cutoff (TCO) devices effectively deliver higher current overtemperature protection to make newer battery designs more reliable by controlling specified abnormal excessive current almost instantly.

The model AC series offers five trip temperature options from +72°C to +90°C, making it the highest current-carrying TCO device Bourns offers. The protection devices deliver extremely low impedance/resistance of 2 mΩ maximum. The AC series is designed to help battery pack designers save valuable design space and weight. To achieve this, the AC series is 0.12 mm thinner and 16% lighter than the existing model AA series.

Features Applications
  • Miniature TCO device
  • High current capacity, low impedance
  • Overtemperature and overcurrent protection for lithium polymer and prismatic cells
  • Controls abnormal, excessive current almost instantly, up to rated limits
  • Wide range of temperature options
  • Battery cell protection for
    • Notebook PCs
    • Tablet PCs
    • Smartphones

AC Series Breakers

ImageManufacturer Part NumberDescriptionSwitching TemperatureAvailable QuantityView Details
THERMOSTAT 72DEG C NC 2-SMD SLDRAC72ABDTHERMOSTAT 72DEG C NC 2-SMD SLDR162°F (72°C)2898 - ImmediateView Details
THERMOSTAT 77DEG C NC 2-SMD SLDRAC77ABDTHERMOSTAT 77DEG C NC 2-SMD SLDR170°F (77°C)2670 - ImmediateView Details
THERMOSTAT 82DEG C NC 2-SMD SLDRAC82ABDTHERMOSTAT 82DEG C NC 2-SMD SLDR180°F (82°C)2975 - ImmediateView Details
THERMOSTAT 85DEG C NC STRAP SLDRAC85ABDTHERMOSTAT 85DEG C NC STRAP SLDR185°F (85°C)2553 - ImmediateView Details
THERMOSTAT 90DEG C NC STRAP SLDRAC90ABDTHERMOSTAT 90DEG C NC STRAP SLDR194°F (90°C)2330 - ImmediateView Details
Published: 2018-05-23