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Bourns NX Series Thermal Cutoff (TCO) Devices

Bourns NX Series Thermal Cutoff (TCO) Devices are high-current miniature resettable devices that employ a high-rated corrosion-resistant bimetal mechanism for improved endurance in humid environments. These devices support current capabilities from 12A to 20A at 60°C. The NX series TCO devices offer a 1.2mΩ and 3mΩ typical resistance. These devices include overcurrent and overtemperature protection for lithium polymer and prismatic cells. The NX series TCO devices are available with 77°C, 82°C, 85°C, and 90°C trip temperature options, which operate within a ±5°C tolerance. These devices are used for battery protection in handheld and wearable electronics, notebook PCs, tablet PCs, and smartphones.

Features

  • Improved corrosion resistance
  • High current capacity and small body size
  • Carries 40% more current than NR series
  • Controls abnormal, excessive current virtually up to rated limits instantaneously
  • Overcurrent and overtemperature protection for lithium polymer and prismatic cells
  • RoHS-compliant and UL-recognized

Specifications

  • 200mA maximum leakage current @25°C
  • 1.2mΩ and 3mΩ typical resistance
  • 3V minimum holding voltage @25°C for 1 minute
  • 40°C minimum reset temperature

Applications

  • Battery cell protection:
    • Smartphones
    • Tablet PCs
    • Notebook PCs
  • Handheld and wearable electronics

Mechanical Diagram

Mechanical Drawing - Bourns NX Series Thermal Cutoff (TCO) Devices

Additional Resource

View Results ( 8 ) Page
Numero ng Piyesa Datasheet Minimum na Holding Voltage Resistance Maximum na Breaking Current Maximum na Leakage Current Maximum na Voltage Rated na Temperatura Temperatura ng Pag-reset
NX77ABB NX77ABB Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 77 C + 40 C
NX82ABB NX82ABB Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 82 C + 40 C
NX85ABB NX85ABB Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 85 C + 40 C
NX90ABB NX90ABB Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 90 C + 40 C
NX77A1B NX77A1B Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 77 C + 40 C
NX82A1B NX82A1B Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 82 C + 40 C
NX85A1B NX85A1B Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 85 C + 40 C
NX90A1B NX90A1B Datasheet 3 V 1.2 mOhms 70 A 200 mA 28 VDC / 35 A, 100 cycles + 90 C + 40 C
Inilathala: 2024-03-11 | Na-update: 2024-05-30