Bourns Inc.

KCA, LC, HC, and NR Series Mini-Breakers

Bourns offers their Komatsulite™ Model KCA series, LC series, HC series, and NR series mini-breakers

Image of Bourns' KCA, LC, HC, and NR Series Mini-BreakersThese innovative mini-breaker devices from Bourns enable long battery life, high current draw and fast recharge, while providing an effective mechanism to protect against overtemperature and overcurrent conditions. This new family of mini-breakers complements Bourns’ broad offering of PTC resettable fuses and TBU® High-Speed Protectors for overcurrent protection as well as their wide range of overvoltage protectors such as TVS diodes, TISP® thyristors, multilayer varistors and gas discharge tubes.

Features Applications
  • Overtemperature and overcurrent protection for lithium polymer and prismatic cells
  • Controls abnormal, excessive current virtually instantaneously
  • Wide range of temperature options
  • RoHS-compliant
  • Battery cell protection for:
    • Notebook PCs
    • Tablet PCs
    • Smart phones
    • Mobile phones

KCA Series

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
THERMOSTAT 72DEG C SPST-NC 2SMDKCA72AB0THERMOSTAT 72DEG C SPST-NC 2SMD0 - ImmediateSee Page for PricingVer detalhes
THERMOSTAT 82DEG C SPST-NC 2SMDKCA82AB0THERMOSTAT 82DEG C SPST-NC 2SMD0 - ImmediateSee Page for PricingVer detalhes
THERMOSTAT 85DEG C NC STRAP SLDRKCA85AB0THERMOSTAT 85DEG C NC STRAP SLDR0 - ImmediateSee Page for PricingVer detalhes
CIRC PRTCT KIT THERMOSTAT 20PCKCA-LAB1CIRC PRTCT KIT THERMOSTAT 20PC0 - ImmediateSee Page for PricingVer detalhes

NR Series

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
THERMOSTAT 77DEG C NC STRAP SLDRNR77AB0THERMOSTAT 77DEG C NC STRAP SLDR4890 - Immediate$1.44Ver detalhes
THERMOSTAT 85DEG C SPST-NC 2SMDNR85CB0THERMOSTAT 85DEG C SPST-NC 2SMD5991 - Immediate$1.45Ver detalhes
THERMOSTAT 77DEG C SPST-NC 2SMDNR77CB0THERMOSTAT 77DEG C SPST-NC 2SMD4983 - Immediate$1.45Ver detalhes
THERMOSTAT 85DEG C NC STRAP SLDRNR85AB0THERMOSTAT 85DEG C NC STRAP SLDR5166 - Immediate$1.69Ver detalhes
THERMOSTAT 82DEG C SPST-NC 2SMDNR82AB0THERMOSTAT 82DEG C SPST-NC 2SMD4987 - Immediate$1.44Ver detalhes
THERMOSTAT 72DEG C SPST-NC 2SMDNR72AB0THERMOSTAT 72DEG C SPST-NC 2SMD9984 - Immediate$1.69Ver detalhes
THERMOSTAT 72DEG C SPST-NC 2SMDNR72CB0THERMOSTAT 72DEG C SPST-NC 2SMD94 - Immediate$1.45Ver detalhes
THERMOSTAT 82DEG C SPST-NC 2SMDNR82CB0THERMOSTAT 82DEG C SPST-NC 2SMD0 - Immediate$0.54Ver detalhes
CIRC PRTCT KIT THERMOSTAT 5PCNR-LAB1CIRC PRTCT KIT THERMOSTAT 5PC0 - Immediate$18.15Ver detalhes
CIRC PRTCT KIT THERMOSTAT 5PCNR-LAB2CIRC PRTCT KIT THERMOSTAT 5PC0 - Immediate$18.15Ver detalhes

LC Series

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
THERMOSTAT 72DEG C NC STRAP SLDRLC72AY-1THERMOSTAT 72DEG C NC STRAP SLDR673 - Immediate$1.26Ver detalhes
THERMOSTAT 77DEG C NC STRAP SLDRLC77AY-1THERMOSTAT 77DEG C NC STRAP SLDR4517 - Immediate$1.26Ver detalhes
THERMOSTAT 82DEG C NC STRAP SLDRLC82AY-1THERMOSTAT 82DEG C NC STRAP SLDR4431 - Immediate$1.26Ver detalhes
THERMOSTAT 85DEG C NC STRAP SLDRLC85AY-1THERMOSTAT 85DEG C NC STRAP SLDR0 - Immediate$1.26Ver detalhes
CIRC PRTCT KIT THERMOSTAT 5PCLC-LAB1CIRC PRTCT KIT THERMOSTAT 5PC1 - Immediate$18.44Ver detalhes

HC Series

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
THERMOSTAT 85DEG C NC STRAP SLDRHC85AY-1THERMOSTAT 85DEG C NC STRAP SLDR4943 - Immediate$1.56Ver detalhes
THERMOSTAT 90DEG C NC 2-SMD SLDRHC90AY-1THERMOSTAT 90DEG C NC 2-SMD SLDR4735 - Immediate$1.56Ver detalhes
THERMOSTAT 72DEG C NC STRAP SLDRHC72AY-1THERMOSTAT 72DEG C NC STRAP SLDR4287 - Immediate$1.56Ver detalhes
THERMOSTAT 82DEG C NC STRAP SLDRHC82AY-1THERMOSTAT 82DEG C NC STRAP SLDR4934 - Immediate$1.33Ver detalhes
THERMOSTAT 77DEG C NC STRAP SLDRHC77AY-1THERMOSTAT 77DEG C NC STRAP SLDR9947 - Immediate$1.56Ver detalhes
CIRC PRTCT KIT THERMOSTAT 5PCHC-LAB1CIRC PRTCT KIT THERMOSTAT 5PC0 - Immediate$18.32Ver detalhes
Published: 2015-07-08

Related Videos

Bourns® Mini-Breakers (Miniature Thermal Cut Off Devices) Training
Bourns® Mini-Breakers (Miniature Thermal Cut Off Devices) Training

Publish Date: 2023-09-20

Bourns® Overtemperature Protection for USB Type-C Cables
Bourns® Overtemperature Protection for USB Type-C Cables

Publish Date: 2022-06-06

Bourns Komatsulite Mini-Breakers | DigiKey Daily
Bourns Komatsulite Mini-Breakers | DigiKey Daily

Publish Date: 2016-07-14

Related Product Highlight

Mini-Breaker (Thermal Cutoff Devices) Design Kits Bourns offers five Komatsulite mini-breaker (thermal cutoff device) design kits, including the HC series, LC series, KCA series, and NR series mini-breakers.

Related Product Training Modules

Mini-Breakers: Overtemperature Protection for Heater Applications Bourns mini-breakers are a combination of two common circuit protection technologies: a PTC and a bimetal switch, providing several advantages over either technology on its own.
Mini-breaker Thermal Cut Off (TCO) Devices This presentation will introduce the range of mini-breakers, explain their construction, and review their applications and advantages. It will also explain the part numbering system and talk about how to select the most suitable part.