BOURNS Thermal Cut-Off Fuse, 25A, 72°C
BOURNS 25A thermal cut-off fuse for lithium battery protection. SMD, 72°C trip, 40°C reset. Compact safety component.
The BOURNS Thermal Cut-Off (TCO) Fuse is a miniature safety device engineered to provide rapid and reliable overtemperature and overcurrent protection. It is specifically designed to control abnormal or excessive current virtually instantaneously, up to its rated limits, safeguarding sensitive components from potential damage.
Rated for 25 Amps at 28V DC, this fuse offers precise protection for applications using lithium polymer and prismatic cells, where thermal management is critical. It operates at a functioning temperature of 72°C, interrupting the circuit to prevent overheating. Once tripped, the device will automatically reset when the temperature drops to a minimum of 40°C, ensuring continued protection after a fault condition has cleared.
Its compact Surface-Mount Device (SMD) terminals facilitate easy integration into modern electronic assemblies, making it an ideal choice for printed circuit boards (PCBs) where space is at a premium. The slim body profile, with a thickness of just 1.07mm, allows for installation in tightly packed designs.
Key Features:
- Instant Protection: Acts virtually instantaneously against overcurrent and overtemperature conditions.
- Automatic Reset: Resets when the temperature falls below 40°C, allowing for system recovery.
- Compact SMD Design: Features surface-mount terminals for efficient PCB assembly.
- Specific Application: Provides essential safety for lithium polymer and prismatic battery cells.
- Reliable Construction: Part of the trusted BOURNS SC product range, ensuring consistent performance and quality.
- Overtemperature protection circuits
- Overcurrent protection for lithium polymer cells
- Safety systems for prismatic battery cells
- Electronic control units (ECUs)
- Fuse Current Rating: 25A
- Voltage Rating: 28V DC
- Functioning/Trip Temperature: 72°C
- Reset/Holding Temperature: 40°C (minimum)
- Terminal Type: SMD (Surface-Mount Device)
- Body Thickness: 1.07mm
- Product Range: SC
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- Weight: 0.03 grams
- Reset temperature: 40°C (minimum
- Range: SC
- Fuse Current: 25A
- Functioning Temperature: 72°C
- Fuse Terminals: SMD
- Holding Temperature: 40°C
- SVHC: No SVHC (04-Feb-2026)
Documents
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