BOURNS Thermal Cut Off Fuse, 28V, 85 Degrees C - 12A
BOURNS thermal cutoff fuse, 5A, 28V DC, 85°C functioning temp. Compact TCO for LiPo & prismatic cell protection.
The BOURNS Thermal Cut Off Fuse is a miniature thermal cutoff device (TCO) designed to provide reliable overtemperature and overcurrent protection for lithium polymer and prismatic cells. This low current type fuse is rated for 5A at 28V DC, making it ideal for safeguarding sensitive battery packs in portable electronics and other compact applications.
When the ambient temperature reaches the rated functioning temperature of 85°C, the fuse opens the circuit, preventing thermal runaway and potential damage to the battery or device. The device resets only after the temperature drops to a minimum of 40°C, ensuring safe and stable operation. The blade terminal configuration allows for secure, straightforward connections in your circuit design.
Constructed with precision from the trusted brand BOURNS, this thermal cutoff fuse is part of the Komatsulite LC series, known for its dependable performance and compact footprint. With holding temperature rated at 40°C and a current rating of 5A, it is engineered to meet the demands of modern battery management systems.
Applications
- Suitable for over-temperature protection in lithium polymer (LiPo) battery packs.
- Suitable for over-temperature protection in prismatic cells.
- Ideal for portable electronics, power tools, and other battery-powered devices.
- Ideal for use in battery management systems requiring low current cutoff.
- Provides overtemperature and overcurrent protection in compact form factors.
Specifications
- Fuse Current: 5A
- Voltage Rating DC: 28V
- Functioning Temperature: 85°C
- Reset Temperature: 40°C (minimum)
- Holding Temperature: 40°C
- Fuse Terminals: Blade
- Product Range: Komatsulite LC
- Dimensions: 43mm (H) x 33mm (W) x 15mm (D)
Trust BOURNS for high-quality thermal protection components that ensure the safety and
Variant Details
- Size: 12A
- For lithium polymer cells
- For prismatic cells
- For overtemperature protection
- For overcurrent protection
- Product Range: CB Series
- Voltage Rating: 28V DC
- Functioning Temperature: 85°C
- Holding Temperature: 40°C (minimum)
- Fuse Terminals: Blade
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- Weight: 0.355 grams
- Reset temperature: 40°C (minimum)
- Without Terminal Protection Product Range: CB Series
- Fuse Current: 25A
- SVHC: No SVHC (04-Feb-2026)
Documents
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website employs advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your basket and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
You may like
