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Semifuse SFSR RESETTABLE PPTC Fuse
Our Semifuse SFSR re-settable polymeric positive temperature coefficient (PPTC) fuse from Fuzetec will provide reliable, non-cycling protection against short circuits in rechargeable batteries and electronic circuits.
Once tripped the device remains in a high resistance state until the fault is removed, preventing damage to the circuit. The device is designed to be welded as a link between cells in battery packs.
Applications
- Rechargeable battery packs
- Lithium cells
- Battery packs
Features
- Voltages – 15VDC to 30VDC
- Current ratings 1.2A – 4.2A
- Temperature range – 40°C to 85°C
- Low profile
- Solid state
- Nickel straps for spot-welding directly onto battery cells.


Dimensions Table
